1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/about_flags.h"
6
7 #include <iterator>
8 #include <map>
9 #include <set>
10 #include <utility>
11
12 #include "base/command_line.h"
13 #include "base/memory/singleton.h"
14 #include "base/stl_util.h"
15 #include "base/strings/string_number_conversions.h"
16 #include "base/strings/utf_string_conversions.h"
17 #include "base/values.h"
18 #include "cc/base/switches.h"
19 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
20 #include "chrome/browser/flags_storage.h"
21 #include "chrome/common/chrome_content_client.h"
22 #include "chrome/common/chrome_switches.h"
23 #include "components/autofill/core/common/autofill_switches.h"
24 #include "components/cloud_devices/common/cloud_devices_switches.h"
25 #include "components/nacl/common/nacl_switches.h"
26 #include "content/public/browser/user_metrics.h"
27 #include "extensions/common/switches.h"
28 #include "grit/chromium_strings.h"
29 #include "grit/generated_resources.h"
30 #include "grit/google_chrome_strings.h"
31 #include "media/base/media_switches.h"
32 #include "ui/base/l10n/l10n_util.h"
33 #include "ui/base/ui_base_switches.h"
34 #include "ui/display/display_switches.h"
35 #include "ui/events/event_switches.h"
36 #include "ui/gfx/switches.h"
37 #include "ui/gl/gl_switches.h"
38 #include "ui/keyboard/keyboard_switches.h"
39 #include "ui/native_theme/native_theme_switches.h"
40 #include "ui/views/views_switches.h"
41
42 #if defined(OS_ANDROID)
43 #include "chrome/common/chrome_version_info.h"
44 #include "components/data_reduction_proxy/common/data_reduction_proxy_switches.h"
45 #endif
46
47 #if defined(USE_ASH)
48 #include "ash/ash_switches.h"
49 #endif
50
51 #if defined(OS_CHROMEOS)
52 #include "chromeos/chromeos_switches.h"
53 #include "third_party/cros_system_api/switches/chrome_switches.h"
54 #endif
55
56 #if defined(ENABLE_APP_LIST)
57 #include "ui/app_list/app_list_switches.h"
58 #endif
59
60 using base::UserMetricsAction;
61
62 namespace about_flags {
63
64 // Macros to simplify specifying the type.
65 #define SINGLE_VALUE_TYPE_AND_VALUE(command_line_switch, switch_value) \
66 Experiment::SINGLE_VALUE, \
67 command_line_switch, switch_value, NULL, NULL, NULL, 0
68 #define SINGLE_VALUE_TYPE(command_line_switch) \
69 SINGLE_VALUE_TYPE_AND_VALUE(command_line_switch, "")
70 #define ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(enable_switch, enable_value, \
71 disable_switch, disable_value) \
72 Experiment::ENABLE_DISABLE_VALUE, enable_switch, enable_value, \
73 disable_switch, disable_value, NULL, 3
74 #define ENABLE_DISABLE_VALUE_TYPE(enable_switch, disable_switch) \
75 ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(enable_switch, "", disable_switch, "")
76 #define MULTI_VALUE_TYPE(choices) \
77 Experiment::MULTI_VALUE, NULL, NULL, NULL, NULL, choices, arraysize(choices)
78
79 namespace {
80
81 const unsigned kOsAll = kOsMac | kOsWin | kOsLinux | kOsCrOS | kOsAndroid;
82 const unsigned kOsDesktop = kOsMac | kOsWin | kOsLinux | kOsCrOS;
83
84 // Adds a |StringValue| to |list| for each platform where |bitmask| indicates
85 // whether the experiment is available on that platform.
AddOsStrings(unsigned bitmask,base::ListValue * list)86 void AddOsStrings(unsigned bitmask, base::ListValue* list) {
87 struct {
88 unsigned bit;
89 const char* const name;
90 } kBitsToOs[] = {
91 {kOsMac, "Mac"},
92 {kOsWin, "Windows"},
93 {kOsLinux, "Linux"},
94 {kOsCrOS, "Chrome OS"},
95 {kOsAndroid, "Android"},
96 {kOsCrOSOwnerOnly, "Chrome OS (owner only)"},
97 };
98 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kBitsToOs); ++i)
99 if (bitmask & kBitsToOs[i].bit)
100 list->Append(new base::StringValue(kBitsToOs[i].name));
101 }
102
103 // Convert switch constants to proper CommandLine::StringType strings.
GetSwitchString(const std::string & flag)104 CommandLine::StringType GetSwitchString(const std::string& flag) {
105 CommandLine cmd_line(CommandLine::NO_PROGRAM);
106 cmd_line.AppendSwitch(flag);
107 DCHECK_EQ(2U, cmd_line.argv().size());
108 return cmd_line.argv()[1];
109 }
110
111 // Scoops flags from a command line.
ExtractFlagsFromCommandLine(const CommandLine & cmdline)112 std::set<CommandLine::StringType> ExtractFlagsFromCommandLine(
113 const CommandLine& cmdline) {
114 std::set<CommandLine::StringType> flags;
115 // First do the ones between --flag-switches-begin and --flag-switches-end.
116 CommandLine::StringVector::const_iterator first =
117 std::find(cmdline.argv().begin(), cmdline.argv().end(),
118 GetSwitchString(switches::kFlagSwitchesBegin));
119 CommandLine::StringVector::const_iterator last =
120 std::find(cmdline.argv().begin(), cmdline.argv().end(),
121 GetSwitchString(switches::kFlagSwitchesEnd));
122 if (first != cmdline.argv().end() && last != cmdline.argv().end())
123 flags.insert(first + 1, last);
124 #if defined(OS_CHROMEOS)
125 // Then add those between --policy-switches-begin and --policy-switches-end.
126 first = std::find(cmdline.argv().begin(), cmdline.argv().end(),
127 GetSwitchString(chromeos::switches::kPolicySwitchesBegin));
128 last = std::find(cmdline.argv().begin(), cmdline.argv().end(),
129 GetSwitchString(chromeos::switches::kPolicySwitchesEnd));
130 if (first != cmdline.argv().end() && last != cmdline.argv().end())
131 flags.insert(first + 1, last);
132 #endif
133 return flags;
134 }
135
136 const Experiment::Choice kEnableCompositingForFixedPositionChoices[] = {
137 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
138 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
139 switches::kEnableCompositingForFixedPosition, ""},
140 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
141 switches::kDisableCompositingForFixedPosition, ""},
142 { IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_HIGH_DPI,
143 switches::kEnableHighDpiCompositingForFixedPosition, ""}
144 };
145
146 const Experiment::Choice kEnableCompositingForTransitionChoices[] = {
147 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
148 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
149 switches::kEnableCompositingForTransition, ""},
150 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
151 switches::kDisableCompositingForTransition, ""},
152 };
153
154 const Experiment::Choice kEnableAcceleratedFixedRootBackgroundChoices[] = {
155 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
156 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
157 switches::kEnableAcceleratedFixedRootBackground, ""},
158 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
159 switches::kDisableAcceleratedFixedRootBackground, ""},
160 };
161
162 const Experiment::Choice kTouchEventsChoices[] = {
163 { IDS_GENERIC_EXPERIMENT_CHOICE_AUTOMATIC, "", "" },
164 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
165 switches::kTouchEvents,
166 switches::kTouchEventsEnabled },
167 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
168 switches::kTouchEvents,
169 switches::kTouchEventsDisabled }
170 };
171
172 #if defined(USE_AURA)
173 const Experiment::Choice kOverscrollHistoryNavigationChoices[] = {
174 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED, "", "" },
175 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
176 switches::kOverscrollHistoryNavigation,
177 "0" },
178 { IDS_OVERSCROLL_HISTORY_NAVIGATION_SIMPLE_UI,
179 switches::kOverscrollHistoryNavigation,
180 "2" }
181 };
182 #endif
183
184 #if !defined(DISABLE_NACL)
185 const Experiment::Choice kNaClDebugMaskChoices[] = {
186 // Secure shell can be used on ChromeOS for forwarding the TCP port opened by
187 // debug stub to a remote machine. Since secure shell uses NaCl, we usually
188 // want to avoid debugging that. The PNaCl translator is also a NaCl module,
189 // so by default we want to avoid debugging that.
190 // NOTE: As the default value must be the empty string, the mask excluding
191 // the PNaCl translator and secure shell is substituted elsewhere.
192 { IDS_NACL_DEBUG_MASK_CHOICE_EXCLUDE_UTILS_PNACL, "", "" },
193 { IDS_NACL_DEBUG_MASK_CHOICE_DEBUG_ALL, switches::kNaClDebugMask, "*://*" },
194 { IDS_NACL_DEBUG_MASK_CHOICE_INCLUDE_DEBUG,
195 switches::kNaClDebugMask, "*://*/*debug.nmf" }
196 };
197 #endif
198
199 const Experiment::Choice kImplSidePaintingChoices[] = {
200 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
201 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
202 switches::kEnableImplSidePainting, ""},
203 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
204 switches::kDisableImplSidePainting, ""}
205 };
206
207 const Experiment::Choice kLCDTextChoices[] = {
208 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
209 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED, switches::kEnableLCDText, ""},
210 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED, switches::kDisableLCDText, ""}
211 };
212
213 const Experiment::Choice kDistanceFieldTextChoices[] = {
214 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
215 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
216 switches::kEnableDistanceFieldText, "" },
217 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
218 switches::kDisableDistanceFieldText, "" }
219 };
220
221 #ifndef USE_AURA
222 const Experiment::Choice kDelegatedRendererChoices[] = {
223 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
224 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
225 switches::kEnableDelegatedRenderer, ""},
226 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
227 switches::kDisableDelegatedRenderer, ""}
228 };
229 #endif
230
231 const Experiment::Choice kMaxTilesForInterestAreaChoices[] = {
232 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
233 { IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_SHORT,
234 cc::switches::kMaxTilesForInterestArea, "64"},
235 { IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_TALL,
236 cc::switches::kMaxTilesForInterestArea, "128"},
237 { IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_GRANDE,
238 cc::switches::kMaxTilesForInterestArea, "256"},
239 { IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_VENTI,
240 cc::switches::kMaxTilesForInterestArea, "512"}
241 };
242
243 const Experiment::Choice kDefaultTileWidthChoices[] = {
244 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
245 { IDS_FLAGS_DEFAULT_TILE_WIDTH_SHORT,
246 switches::kDefaultTileWidth, "128"},
247 { IDS_FLAGS_DEFAULT_TILE_WIDTH_TALL,
248 switches::kDefaultTileWidth, "256"},
249 { IDS_FLAGS_DEFAULT_TILE_WIDTH_GRANDE,
250 switches::kDefaultTileWidth, "512"},
251 { IDS_FLAGS_DEFAULT_TILE_WIDTH_VENTI,
252 switches::kDefaultTileWidth, "1024"}
253 };
254
255 const Experiment::Choice kDefaultTileHeightChoices[] = {
256 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
257 { IDS_FLAGS_DEFAULT_TILE_HEIGHT_SHORT,
258 switches::kDefaultTileHeight, "128"},
259 { IDS_FLAGS_DEFAULT_TILE_HEIGHT_TALL,
260 switches::kDefaultTileHeight, "256"},
261 { IDS_FLAGS_DEFAULT_TILE_HEIGHT_GRANDE,
262 switches::kDefaultTileHeight, "512"},
263 { IDS_FLAGS_DEFAULT_TILE_HEIGHT_VENTI,
264 switches::kDefaultTileHeight, "1024"}
265 };
266
267 const Experiment::Choice kSimpleCacheBackendChoices[] = {
268 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
269 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
270 switches::kUseSimpleCacheBackend, "off" },
271 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
272 switches::kUseSimpleCacheBackend, "on"}
273 };
274
275 #if defined(USE_AURA)
276 const Experiment::Choice kTabCaptureUpscaleQualityChoices[] = {
277 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
278 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_FAST,
279 switches::kTabCaptureUpscaleQuality, "fast" },
280 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_GOOD,
281 switches::kTabCaptureUpscaleQuality, "good" },
282 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_BEST,
283 switches::kTabCaptureUpscaleQuality, "best" },
284 };
285
286 const Experiment::Choice kTabCaptureDownscaleQualityChoices[] = {
287 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
288 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_FAST,
289 switches::kTabCaptureDownscaleQuality, "fast" },
290 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_GOOD,
291 switches::kTabCaptureDownscaleQuality, "good" },
292 { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_BEST,
293 switches::kTabCaptureDownscaleQuality, "best" },
294 };
295 #endif
296
297 #if defined(USE_AURA) || defined(OS_LINUX)
298 const Experiment::Choice kOverlayScrollbarChoices[] = {
299 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
300 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
301 switches::kEnableOverlayScrollbar, ""},
302 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
303 switches::kDisableOverlayScrollbar, ""}
304 };
305 #endif
306
307 const Experiment::Choice kZeroCopyChoices[] = {
308 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
309 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
310 switches::kEnableZeroCopy, ""},
311 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
312 switches::kDisableZeroCopy, ""}
313 };
314
315 #if defined(OS_ANDROID)
316 const Experiment::Choice kZeroSuggestExperimentsChoices[] = {
317 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
318 { IDS_FLAGS_ZERO_SUGGEST_MOST_VISITED,
319 switches::kEnableZeroSuggestMostVisited, ""},
320 { IDS_FLAGS_ZERO_SUGGEST_ETHER_SERP,
321 switches::kEnableZeroSuggestEtherSerp, ""},
322 { IDS_FLAGS_ZERO_SUGGEST_ETHER_NO_SERP,
323 switches::kEnableZeroSuggestEtherNoSerp, ""},
324 { IDS_FLAGS_ZERO_SUGGEST_PERSONALIZED,
325 switches::kEnableZeroSuggestPersonalized, ""},
326 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
327 switches::kDisableZeroSuggest, ""}
328 };
329 #endif
330
331 const Experiment::Choice kNumRasterThreadsChoices[] = {
332 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
333 { IDS_FLAGS_NUM_RASTER_THREADS_ONE, switches::kNumRasterThreads, "1" },
334 { IDS_FLAGS_NUM_RASTER_THREADS_TWO, switches::kNumRasterThreads, "2" },
335 { IDS_FLAGS_NUM_RASTER_THREADS_THREE, switches::kNumRasterThreads, "3" },
336 { IDS_FLAGS_NUM_RASTER_THREADS_FOUR, switches::kNumRasterThreads, "4" }
337 };
338
339 const Experiment::Choice kEnableGpuRasterizationChoices[] = {
340 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
341 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
342 switches::kEnableGpuRasterization, "" },
343 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
344 switches::kDisableGpuRasterization, "" },
345 { IDS_FLAGS_FORCE_GPU_RASTERIZATION,
346 switches::kForceGpuRasterization, "" },
347 };
348
349 // We're using independent flags here (as opposed to a common flag with
350 // different values) to be able to enable/disable the entire experience
351 // associated with this feature server-side from the FieldTrial (the complete
352 // experience includes other flag changes as well). It is not currently possible
353 // to do that with "flag=value" flags.
354 const Experiment::Choice kSearchButtonInOmniboxChoices[] = {
355 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
356 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
357 switches::kDisableSearchButtonInOmnibox, ""},
358 { IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_ENABLE_FOR_STR,
359 switches::kEnableSearchButtonInOmniboxForStr, ""},
360 { IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_ENABLE_FOR_STR_OR_IIP,
361 switches::kEnableSearchButtonInOmniboxForStrOrIip, ""},
362 { IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_ENABLED,
363 switches::kEnableSearchButtonInOmniboxAlways, ""}
364 };
365
366 // See comment above for kSearchButtonInOmniboxChoices. The same reasoning
367 // applies here.
368 const Experiment::Choice kOriginChipChoices[] = {
369 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
370 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED, switches::kDisableOriginChip, ""},
371 { IDS_FLAGS_ORIGIN_CHIP_ALWAYS, switches::kEnableOriginChipAlways, ""},
372 { IDS_FLAGS_ORIGIN_CHIP_ON_SRP, switches::kEnableOriginChipOnSrp, ""}
373 };
374
375 const Experiment::Choice kTouchScrollingModeChoices[] = {
376 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
377 { IDS_FLAGS_TOUCH_SCROLLING_MODE_TOUCHCANCEL,
378 switches::kTouchScrollingMode,
379 switches::kTouchScrollingModeTouchcancel },
380 { IDS_FLAGS_TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE,
381 switches::kTouchScrollingMode,
382 switches::kTouchScrollingModeAsyncTouchmove },
383 { IDS_FLAGS_TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE,
384 switches::kTouchScrollingMode,
385 switches::kTouchScrollingModeSyncTouchmove },
386 };
387
388 #if defined(ENABLE_APP_LIST)
389 const Experiment::Choice kEnableSyncAppListChoices[] = {
390 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
391 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
392 app_list::switches::kEnableSyncAppList, "" },
393 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
394 app_list::switches::kDisableSyncAppList, "" },
395 };
396 #endif
397
398 const Experiment::Choice kExtensionContentVerificationChoices[] = {
399 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
400 { IDS_FLAGS_EXTENSION_CONTENT_VERIFICATION_BOOTSTRAP,
401 extensions::switches::kExtensionContentVerification,
402 extensions::switches::kExtensionContentVerificationBootstrap },
403 { IDS_FLAGS_EXTENSION_CONTENT_VERIFICATION_ENFORCE,
404 extensions::switches::kExtensionContentVerification,
405 extensions::switches::kExtensionContentVerificationEnforce },
406 { IDS_FLAGS_EXTENSION_CONTENT_VERIFICATION_ENFORCE_STRICT,
407 extensions::switches::kExtensionContentVerification,
408 extensions::switches::kExtensionContentVerificationEnforceStrict },
409 };
410
411 #if defined(OS_ANDROID)
412 const Experiment::Choice kAnswersInSuggestChoices[] = {
413 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
414 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
415 switches::kEnableAnswersInSuggest, ""},
416 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
417 switches::kDisableAnswersInSuggest, ""}
418 };
419 #endif
420
421 // Using independent flags (instead of flag=value flags) to be able to
422 // associate the version with a FieldTrial. FieldTrials don't currently support
423 // flag=value flags.
424 const Experiment::Choice kSSLInterstitialVersions[] = {
425 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
426 { IDS_FLAGS_SSL_INTERSTITIAL_VERSION_V1,
427 switches::kSSLInterstitialVersionV1, "" },
428 { IDS_FLAGS_SSL_INTERSTITIAL_VERSION_V2_GRAY,
429 switches::kSSLInterstitialVersionV2Gray, "" },
430 { IDS_FLAGS_SSL_INTERSTITIAL_VERSION_V2_COLORFUL,
431 switches::kSSLInterstitialVersionV2Colorful, "" },
432 };
433
434 // Using independent flags (instead of flag=value flags) to be able to
435 // associate the version with a FieldTrial. FieldTrials don't currently support
436 // flag=value flags.
437 const Experiment::Choice kMalwareInterstitialVersions[] = {
438 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
439 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V2,
440 switches::kMalwareInterstitialV2, "" },
441 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V3,
442 switches::kMalwareInterstitialV3, "" },
443 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V3_ADVICE,
444 switches::kMalwareInterstitialV3Advice, "" },
445 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V3_SOCIAL,
446 switches::kMalwareInterstitialV3Social, "" },
447 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V3_NOTRECOMMEND,
448 switches::kMalwareInterstitialV3NotRecommend, "" },
449 { IDS_FLAGS_MALWARE_INTERSTITIAL_VERSION_V3_HISTORY,
450 switches::kMalwareInterstitialV3History, "" },
451 };
452
453 #if defined(OS_CHROMEOS)
454 const Experiment::Choice kEnableFileManagerMTPChoices[] = {
455 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
456 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
457 chromeos::switches::kEnableFileManagerMTP, "true" },
458 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
459 chromeos::switches::kEnableFileManagerMTP, "false" }
460 };
461
462 const Experiment::Choice kEnableFileManagerNewGalleryChoices[] = {
463 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", ""},
464 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
465 chromeos::switches::kFileManagerEnableNewGallery, "true"},
466 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
467 chromeos::switches::kFileManagerEnableNewGallery, "false"}
468 };
469 #endif
470
471 const Experiment::Choice kEnableSettingsWindowChoices[] = {
472 { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
473 { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
474 ::switches::kEnableSettingsWindow, "" },
475 { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
476 ::switches::kDisableSettingsWindow, "" },
477 };
478
479 // RECORDING USER METRICS FOR FLAGS:
480 // -----------------------------------------------------------------------------
481 // The first line of the experiment is the internal name. If you'd like to
482 // gather statistics about the usage of your flag, you should append a marker
483 // comment to the end of the feature name, like so:
484 // "my-special-feature", // FLAGS:RECORD_UMA
485 //
486 // After doing that, run
487 // tools/metrics/actions/extract_actions.py
488 // to add the metric to actions.xml (which will enable UMA to record your
489 // feature flag), then update the <owner>s and <description> sections. Make sure
490 // to include the actions.xml file when you upload your code for review!
491 //
492 // After your feature has shipped under a flag, you can locate the metrics under
493 // the action name AboutFlags_internal-action-name. Actions are recorded once
494 // per startup, so you should divide this number by AboutFlags_StartupTick to
495 // get a sense of usage. Note that this will not be the same as number of users
496 // with a given feature enabled because users can quit and relaunch the
497 // application multiple times over a given time interval. The dashboard also
498 // shows you how many (metrics reporting) users have enabled the flag over the
499 // last seven days. However, note that this is not the same as the number of
500 // users who have the flag enabled, since enabling the flag happens once,
501 // whereas running with the flag enabled happens until the user flips the flag
502 // again.
503
504 // To add a new experiment add to the end of kExperiments. There are two
505 // distinct types of experiments:
506 // . SINGLE_VALUE: experiment is either on or off. Use the SINGLE_VALUE_TYPE
507 // macro for this type supplying the command line to the macro.
508 // . MULTI_VALUE: a list of choices, the first of which should correspond to a
509 // deactivated state for this lab (i.e. no command line option). To specify
510 // this type of experiment use the macro MULTI_VALUE_TYPE supplying it the
511 // array of choices.
512 // See the documentation of Experiment for details on the fields.
513 //
514 // When adding a new choice, add it to the end of the list.
515 const Experiment kExperiments[] = {
516 {
517 "ignore-gpu-blacklist",
518 IDS_FLAGS_IGNORE_GPU_BLACKLIST_NAME,
519 IDS_FLAGS_IGNORE_GPU_BLACKLIST_DESCRIPTION,
520 kOsAll,
521 SINGLE_VALUE_TYPE(switches::kIgnoreGpuBlacklist)
522 },
523 {
524 "threaded-compositing-mode",
525 IDS_FLAGS_THREADED_COMPOSITING_MODE_NAME,
526 IDS_FLAGS_THREADED_COMPOSITING_MODE_DESCRIPTION,
527 #if !defined(USE_AURA)
528 kOsLinux,
529 #else
530 0,
531 #endif
532 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableThreadedCompositing,
533 switches::kDisableThreadedCompositing)
534 },
535 {
536 "force-accelerated-composited-scrolling",
537 IDS_FLAGS_FORCE_ACCELERATED_OVERFLOW_SCROLL_MODE_NAME,
538 IDS_FLAGS_FORCE_ACCELERATED_OVERFLOW_SCROLL_MODE_DESCRIPTION,
539 kOsAll,
540 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAcceleratedOverflowScroll,
541 switches::kDisableAcceleratedOverflowScroll)
542 },
543 {
544 "disable_layer_squashing",
545 IDS_FLAGS_DISABLE_LAYER_SQUASHING_NAME,
546 IDS_FLAGS_DISABLE_LAYER_SQUASHING_DESCRIPTION,
547 kOsAll,
548 SINGLE_VALUE_TYPE(switches::kDisableLayerSquashing)
549 },
550 #if defined(OS_WIN)
551 {
552 "disable-direct-write",
553 IDS_FLAGS_DISABLE_DIRECT_WRITE_NAME,
554 IDS_FLAGS_DISABLE_DIRECT_WRITE_DESCRIPTION,
555 kOsWin,
556 SINGLE_VALUE_TYPE(switches::kDisableDirectWrite)
557 },
558 #endif
559 {
560 "enable-experimental-canvas-features",
561 IDS_FLAGS_ENABLE_EXPERIMENTAL_CANVAS_FEATURES_NAME,
562 IDS_FLAGS_ENABLE_EXPERIMENTAL_CANVAS_FEATURES_DESCRIPTION,
563 kOsAll,
564 SINGLE_VALUE_TYPE(switches::kEnableExperimentalCanvasFeatures)
565 },
566 {
567 "disable-accelerated-2d-canvas",
568 IDS_FLAGS_DISABLE_ACCELERATED_2D_CANVAS_NAME,
569 IDS_FLAGS_DISABLE_ACCELERATED_2D_CANVAS_DESCRIPTION,
570 kOsAll,
571 SINGLE_VALUE_TYPE(switches::kDisableAccelerated2dCanvas)
572 },
573 {
574 "composited-layer-borders",
575 IDS_FLAGS_COMPOSITED_LAYER_BORDERS,
576 IDS_FLAGS_COMPOSITED_LAYER_BORDERS_DESCRIPTION,
577 kOsAll,
578 SINGLE_VALUE_TYPE(cc::switches::kShowCompositedLayerBorders)
579 },
580 {
581 "show-fps-counter",
582 IDS_FLAGS_SHOW_FPS_COUNTER,
583 IDS_FLAGS_SHOW_FPS_COUNTER_DESCRIPTION,
584 kOsAll,
585 SINGLE_VALUE_TYPE(cc::switches::kShowFPSCounter)
586 },
587 {
588 "disable-webgl",
589 IDS_FLAGS_DISABLE_WEBGL_NAME,
590 IDS_FLAGS_DISABLE_WEBGL_DESCRIPTION,
591 kOsAll,
592 SINGLE_VALUE_TYPE(switches::kDisableExperimentalWebGL)
593 },
594 {
595 "disable-webrtc",
596 IDS_FLAGS_DISABLE_WEBRTC_NAME,
597 IDS_FLAGS_DISABLE_WEBRTC_DESCRIPTION,
598 kOsAndroid,
599 #if defined(OS_ANDROID)
600 SINGLE_VALUE_TYPE(switches::kDisableWebRTC)
601 #else
602 SINGLE_VALUE_TYPE("")
603 #endif
604 },
605 #if defined(ENABLE_WEBRTC)
606 {
607 "disable-device-enumeration",
608 IDS_FLAGS_DISABLE_DEVICE_ENUMERATION_NAME,
609 IDS_FLAGS_DISABLE_DEVICE_ENUMERATION_DESCRIPTION,
610 kOsAll,
611 SINGLE_VALUE_TYPE(switches::kDisableDeviceEnumeration)
612 },
613 {
614 "disable-webrtc-hw-decoding",
615 IDS_FLAGS_DISABLE_WEBRTC_HW_DECODING_NAME,
616 IDS_FLAGS_DISABLE_WEBRTC_HW_DECODING_DESCRIPTION,
617 kOsAndroid | kOsCrOS,
618 SINGLE_VALUE_TYPE(switches::kDisableWebRtcHWDecoding)
619 },
620 {
621 "disable-webrtc-hw-encoding",
622 IDS_FLAGS_DISABLE_WEBRTC_HW_ENCODING_NAME,
623 IDS_FLAGS_DISABLE_WEBRTC_HW_ENCODING_DESCRIPTION,
624 kOsAndroid | kOsCrOS,
625 SINGLE_VALUE_TYPE(switches::kDisableWebRtcHWEncoding)
626 },
627 #endif
628 #if defined(OS_ANDROID)
629 {
630 "disable-webaudio",
631 IDS_FLAGS_DISABLE_WEBAUDIO_NAME,
632 IDS_FLAGS_DISABLE_WEBAUDIO_DESCRIPTION,
633 kOsAndroid,
634 SINGLE_VALUE_TYPE(switches::kDisableWebAudio)
635 },
636 #endif
637 {
638 "enable-compositing-for-fixed-position",
639 IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_NAME,
640 IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_DESCRIPTION,
641 kOsAll,
642 MULTI_VALUE_TYPE(kEnableCompositingForFixedPositionChoices)
643 },
644 {
645 "enable-compositing-for-transition",
646 IDS_FLAGS_COMPOSITING_FOR_TRANSITION_NAME,
647 IDS_FLAGS_COMPOSITING_FOR_TRANSITION_DESCRIPTION,
648 kOsAll,
649 MULTI_VALUE_TYPE(kEnableCompositingForTransitionChoices)
650 },
651 {
652 "enable-accelerated-fixed-root-background",
653 IDS_FLAGS_ACCELERATED_FIXED_ROOT_BACKGROUND_NAME,
654 IDS_FLAGS_ACCELERATED_FIXED_ROOT_BACKGROUND_DESCRIPTION,
655 kOsAll,
656 MULTI_VALUE_TYPE(kEnableAcceleratedFixedRootBackgroundChoices)
657 },
658 // Native client is compiled out when DISABLE_NACL is defined.
659 #if !defined(DISABLE_NACL)
660 {
661 "enable-nacl", // FLAGS:RECORD_UMA
662 IDS_FLAGS_ENABLE_NACL_NAME,
663 IDS_FLAGS_ENABLE_NACL_DESCRIPTION,
664 kOsAll,
665 SINGLE_VALUE_TYPE(switches::kEnableNaCl)
666 },
667 {
668 "enable-nacl-debug", // FLAGS:RECORD_UMA
669 IDS_FLAGS_ENABLE_NACL_DEBUG_NAME,
670 IDS_FLAGS_ENABLE_NACL_DEBUG_DESCRIPTION,
671 kOsDesktop,
672 SINGLE_VALUE_TYPE(switches::kEnableNaClDebug)
673 },
674 {
675 "disable-pnacl", // FLAGS:RECORD_UMA
676 IDS_FLAGS_DISABLE_PNACL_NAME,
677 IDS_FLAGS_DISABLE_PNACL_DESCRIPTION,
678 kOsDesktop,
679 SINGLE_VALUE_TYPE(switches::kDisablePnacl)
680 },
681 {
682 "nacl-debug-mask", // FLAGS:RECORD_UMA
683 IDS_FLAGS_NACL_DEBUG_MASK_NAME,
684 IDS_FLAGS_NACL_DEBUG_MASK_DESCRIPTION,
685 kOsDesktop,
686 MULTI_VALUE_TYPE(kNaClDebugMaskChoices)
687 },
688 #endif
689 {
690 "extension-apis", // FLAGS:RECORD_UMA
691 IDS_FLAGS_EXPERIMENTAL_EXTENSION_APIS_NAME,
692 IDS_FLAGS_EXPERIMENTAL_EXTENSION_APIS_DESCRIPTION,
693 kOsDesktop,
694 SINGLE_VALUE_TYPE(extensions::switches::kEnableExperimentalExtensionApis)
695 },
696 {
697 "extensions-on-chrome-urls",
698 IDS_FLAGS_EXTENSIONS_ON_CHROME_URLS_NAME,
699 IDS_FLAGS_EXTENSIONS_ON_CHROME_URLS_DESCRIPTION,
700 kOsAll,
701 SINGLE_VALUE_TYPE(extensions::switches::kExtensionsOnChromeURLs)
702 },
703 {
704 "enable-fast-unload",
705 IDS_FLAGS_ENABLE_FAST_UNLOAD_NAME,
706 IDS_FLAGS_ENABLE_FAST_UNLOAD_DESCRIPTION,
707 kOsAll,
708 SINGLE_VALUE_TYPE(switches::kEnableFastUnload)
709 },
710 {
711 "enable-app-window-controls",
712 IDS_FLAGS_ENABLE_APP_WINDOW_CONTROLS_NAME,
713 IDS_FLAGS_ENABLE_APP_WINDOW_CONTROLS_DESCRIPTION,
714 kOsDesktop,
715 SINGLE_VALUE_TYPE(switches::kEnableAppWindowControls)
716 },
717 {
718 "disable-hyperlink-auditing",
719 IDS_FLAGS_DISABLE_HYPERLINK_AUDITING_NAME,
720 IDS_FLAGS_DISABLE_HYPERLINK_AUDITING_DESCRIPTION,
721 kOsAll,
722 SINGLE_VALUE_TYPE(switches::kNoPings)
723 },
724 #if defined(OS_ANDROID)
725 {
726 "enable-new-ntp",
727 IDS_FLAGS_ENABLE_NEW_NTP,
728 IDS_FLAGS_ENABLE_NEW_NTP_DESCRIPTION,
729 kOsAndroid,
730 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableNewNTP,
731 switches::kDisableNewNTP)
732 },
733 {
734 "contextual-search",
735 IDS_FLAGS_ENABLE_CONTEXTUAL_SEARCH,
736 IDS_FLAGS_ENABLE_CONTEXTUAL_SEARCH_DESCRIPTION,
737 kOsAndroid,
738 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableContextualSearch,
739 switches::kDisableContextualSearch)
740 },
741 #endif
742 {
743 "show-autofill-type-predictions",
744 IDS_FLAGS_SHOW_AUTOFILL_TYPE_PREDICTIONS_NAME,
745 IDS_FLAGS_SHOW_AUTOFILL_TYPE_PREDICTIONS_DESCRIPTION,
746 kOsAll,
747 SINGLE_VALUE_TYPE(autofill::switches::kShowAutofillTypePredictions)
748 },
749 {
750 "enable-gesture-tap-highlight",
751 IDS_FLAGS_ENABLE_GESTURE_TAP_HIGHLIGHTING_NAME,
752 IDS_FLAGS_ENABLE_GESTURE_TAP_HIGHLIGHTING_DESCRIPTION,
753 kOsLinux | kOsCrOS | kOsWin | kOsAndroid,
754 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableGestureTapHighlight,
755 switches::kDisableGestureTapHighlight)
756 },
757 {
758 "enable-smooth-scrolling", // FLAGS:RECORD_UMA
759 IDS_FLAGS_ENABLE_SMOOTH_SCROLLING_NAME,
760 IDS_FLAGS_ENABLE_SMOOTH_SCROLLING_DESCRIPTION,
761 // Can't expose the switch unless the code is compiled in.
762 // On by default for the Mac (different implementation in WebKit).
763 kOsLinux,
764 SINGLE_VALUE_TYPE(switches::kEnableSmoothScrolling)
765 },
766 #if defined(USE_AURA) || defined(OS_LINUX)
767 {
768 "overlay-scrollbars",
769 IDS_FLAGS_ENABLE_OVERLAY_SCROLLBARS_NAME,
770 IDS_FLAGS_ENABLE_OVERLAY_SCROLLBARS_DESCRIPTION,
771 // Uses the system preference on Mac (a different implementation).
772 // On Android, this is always enabled.
773 kOsLinux | kOsCrOS | kOsWin,
774 MULTI_VALUE_TYPE(kOverlayScrollbarChoices)
775 },
776 #endif
777 {
778 "enable-panels",
779 IDS_FLAGS_ENABLE_PANELS_NAME,
780 IDS_FLAGS_ENABLE_PANELS_DESCRIPTION,
781 kOsDesktop,
782 SINGLE_VALUE_TYPE(switches::kEnablePanels)
783 },
784 {
785 // See http://crbug.com/120416 for how to remove this flag.
786 "save-page-as-mhtml", // FLAGS:RECORD_UMA
787 IDS_FLAGS_SAVE_PAGE_AS_MHTML_NAME,
788 IDS_FLAGS_SAVE_PAGE_AS_MHTML_DESCRIPTION,
789 kOsMac | kOsWin | kOsLinux,
790 SINGLE_VALUE_TYPE(switches::kSavePageAsMHTML)
791 },
792 {
793 "enable-quic",
794 IDS_FLAGS_ENABLE_QUIC_NAME,
795 IDS_FLAGS_ENABLE_QUIC_DESCRIPTION,
796 kOsAll,
797 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableQuic,
798 switches::kDisableQuic)
799 },
800 {
801 "enable-quic-https",
802 IDS_FLAGS_ENABLE_QUIC_HTTPS_NAME,
803 IDS_FLAGS_ENABLE_QUIC_HTTPS_DESCRIPTION,
804 kOsAll,
805 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableQuicHttps,
806 switches::kDisableQuicHttps)
807 },
808 {
809 "enable-spdy4",
810 IDS_FLAGS_ENABLE_SPDY4_NAME,
811 IDS_FLAGS_ENABLE_SPDY4_DESCRIPTION,
812 kOsAll,
813 SINGLE_VALUE_TYPE(switches::kEnableSpdy4)
814 },
815 {
816 "enable-async-dns",
817 IDS_FLAGS_ENABLE_ASYNC_DNS_NAME,
818 IDS_FLAGS_ENABLE_ASYNC_DNS_DESCRIPTION,
819 kOsWin | kOsMac | kOsLinux | kOsCrOS,
820 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAsyncDns,
821 switches::kDisableAsyncDns)
822 },
823 {
824 "disable-media-source",
825 IDS_FLAGS_DISABLE_MEDIA_SOURCE_NAME,
826 IDS_FLAGS_DISABLE_MEDIA_SOURCE_DESCRIPTION,
827 kOsAll,
828 SINGLE_VALUE_TYPE(switches::kDisableMediaSource)
829 },
830 {
831 "enable-encrypted-media",
832 IDS_FLAGS_ENABLE_ENCRYPTED_MEDIA_NAME,
833 IDS_FLAGS_ENABLE_ENCRYPTED_MEDIA_DESCRIPTION,
834 kOsAll,
835 SINGLE_VALUE_TYPE(switches::kEnableEncryptedMedia)
836 },
837 {
838 "disable-prefixed-encrypted-media",
839 IDS_FLAGS_DISABLE_PREFIXED_ENCRYPTED_MEDIA_NAME,
840 IDS_FLAGS_DISABLE_PREFIXED_ENCRYPTED_MEDIA_DESCRIPTION,
841 kOsAll,
842 SINGLE_VALUE_TYPE(switches::kDisablePrefixedEncryptedMedia)
843 },
844 #if defined(OS_ANDROID)
845 {
846 "disable-infobar-for-protected-media-identifier",
847 IDS_FLAGS_DISABLE_INFOBAR_FOR_PROTECTED_MEDIA_IDENTIFIER_NAME,
848 IDS_FLAGS_DISABLE_INFOBAR_FOR_PROTECTED_MEDIA_IDENTIFIER_DESCRIPTION,
849 kOsAndroid,
850 SINGLE_VALUE_TYPE(switches::kDisableInfobarForProtectedMediaIdentifier)
851 },
852 {
853 "mediadrm-enable-non-compositing",
854 IDS_FLAGS_MEDIADRM_ENABLE_NON_COMPOSITING_NAME,
855 IDS_FLAGS_MEDIADRM_ENABLE_NON_COMPOSITING_DESCRIPTION,
856 kOsAndroid,
857 SINGLE_VALUE_TYPE(switches::kMediaDrmEnableNonCompositing)
858 },
859 #endif // defined(OS_ANDROID)
860 {
861 "enable-javascript-harmony",
862 IDS_FLAGS_ENABLE_JAVASCRIPT_HARMONY_NAME,
863 IDS_FLAGS_ENABLE_JAVASCRIPT_HARMONY_DESCRIPTION,
864 kOsAll,
865 SINGLE_VALUE_TYPE_AND_VALUE(switches::kJavaScriptFlags, "--harmony")
866 },
867 {
868 "disable-software-rasterizer",
869 IDS_FLAGS_DISABLE_SOFTWARE_RASTERIZER_NAME,
870 IDS_FLAGS_DISABLE_SOFTWARE_RASTERIZER_DESCRIPTION,
871 #if defined(ENABLE_SWIFTSHADER)
872 kOsAll,
873 #else
874 0,
875 #endif
876 SINGLE_VALUE_TYPE(switches::kDisableSoftwareRasterizer)
877 },
878 {
879 "enable-gpu-rasterization",
880 IDS_FLAGS_ENABLE_GPU_RASTERIZATION_NAME,
881 IDS_FLAGS_ENABLE_GPU_RASTERIZATION_DESCRIPTION,
882 kOsAndroid,
883 MULTI_VALUE_TYPE(kEnableGpuRasterizationChoices)
884 },
885 {
886 "enable-experimental-web-platform-features",
887 IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_NAME,
888 IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_DESCRIPTION,
889 kOsAll,
890 SINGLE_VALUE_TYPE(switches::kEnableExperimentalWebPlatformFeatures)
891 },
892 {
893 "disable-ntp-other-sessions-menu",
894 IDS_FLAGS_NTP_OTHER_SESSIONS_MENU_NAME,
895 IDS_FLAGS_NTP_OTHER_SESSIONS_MENU_DESCRIPTION,
896 kOsDesktop,
897 SINGLE_VALUE_TYPE(switches::kDisableNTPOtherSessionsMenu)
898 },
899 {
900 "enable-devtools-experiments",
901 IDS_FLAGS_ENABLE_DEVTOOLS_EXPERIMENTS_NAME,
902 IDS_FLAGS_ENABLE_DEVTOOLS_EXPERIMENTS_DESCRIPTION,
903 kOsDesktop,
904 SINGLE_VALUE_TYPE(switches::kEnableDevToolsExperiments)
905 },
906 {
907 "silent-debugger-extension-api",
908 IDS_FLAGS_SILENT_DEBUGGER_EXTENSION_API_NAME,
909 IDS_FLAGS_SILENT_DEBUGGER_EXTENSION_API_DESCRIPTION,
910 kOsDesktop,
911 SINGLE_VALUE_TYPE(switches::kSilentDebuggerExtensionAPI)
912 },
913 {
914 "spellcheck-autocorrect",
915 IDS_FLAGS_SPELLCHECK_AUTOCORRECT,
916 IDS_FLAGS_SPELLCHECK_AUTOCORRECT_DESCRIPTION,
917 kOsWin | kOsLinux | kOsCrOS,
918 SINGLE_VALUE_TYPE(switches::kEnableSpellingAutoCorrect)
919 },
920 {
921 "enable-scroll-prediction",
922 IDS_FLAGS_ENABLE_SCROLL_PREDICTION_NAME,
923 IDS_FLAGS_ENABLE_SCROLL_PREDICTION_DESCRIPTION,
924 kOsDesktop,
925 SINGLE_VALUE_TYPE(switches::kEnableScrollPrediction)
926 },
927 {
928 "touch-events",
929 IDS_TOUCH_EVENTS_NAME,
930 IDS_TOUCH_EVENTS_DESCRIPTION,
931 kOsDesktop,
932 MULTI_VALUE_TYPE(kTouchEventsChoices)
933 },
934 {
935 "disable-touch-adjustment",
936 IDS_DISABLE_TOUCH_ADJUSTMENT_NAME,
937 IDS_DISABLE_TOUCH_ADJUSTMENT_DESCRIPTION,
938 kOsWin | kOsLinux | kOsCrOS,
939 SINGLE_VALUE_TYPE(switches::kDisableTouchAdjustment)
940 },
941 #if defined(OS_CHROMEOS)
942 {
943 "network-portal-notification",
944 IDS_FLAGS_NETWORK_PORTAL_NOTIFICATION_NAME,
945 IDS_FLAGS_NETWORK_PORTAL_NOTIFICATION_DESCRIPTION,
946 kOsCrOS,
947 ENABLE_DISABLE_VALUE_TYPE(
948 chromeos::switches::kEnableNetworkPortalNotification,
949 chromeos::switches::kDisableNetworkPortalNotification)
950 },
951 #endif
952 {
953 "enable-download-resumption",
954 IDS_FLAGS_ENABLE_DOWNLOAD_RESUMPTION_NAME,
955 IDS_FLAGS_ENABLE_DOWNLOAD_RESUMPTION_DESCRIPTION,
956 kOsDesktop,
957 SINGLE_VALUE_TYPE(switches::kEnableDownloadResumption)
958 },
959 // Native client is compiled out when DISABLE_NACL is defined.
960 #if !defined(DISABLE_NACL)
961 {
962 "allow-nacl-socket-api",
963 IDS_FLAGS_ALLOW_NACL_SOCKET_API_NAME,
964 IDS_FLAGS_ALLOW_NACL_SOCKET_API_DESCRIPTION,
965 kOsDesktop,
966 SINGLE_VALUE_TYPE_AND_VALUE(switches::kAllowNaClSocketAPI, "*")
967 },
968 #endif
969 {
970 "force-device-scale-factor",
971 IDS_FLAGS_FORCE_HIGH_DPI_NAME,
972 IDS_FLAGS_FORCE_HIGH_DPI_DESCRIPTION,
973 kOsCrOS,
974 SINGLE_VALUE_TYPE_AND_VALUE(switches::kForceDeviceScaleFactor, "2")
975 },
976 #if defined(OS_CHROMEOS)
977 {
978 "allow-touchpad-three-finger-click",
979 IDS_FLAGS_ALLOW_TOUCHPAD_THREE_FINGER_CLICK_NAME,
980 IDS_FLAGS_ALLOW_TOUCHPAD_THREE_FINGER_CLICK_DESCRIPTION,
981 kOsCrOS,
982 SINGLE_VALUE_TYPE(chromeos::switches::kEnableTouchpadThreeFingerClick)
983 },
984 #endif
985 #if defined(USE_ASH)
986 {
987 "disable-minimize-on-second-launcher-item-click",
988 IDS_FLAGS_DISABLE_MINIMIZE_ON_SECOND_LAUNCHER_ITEM_CLICK_NAME,
989 IDS_FLAGS_DISABLE_MINIMIZE_ON_SECOND_LAUNCHER_ITEM_CLICK_DESCRIPTION,
990 kOsAll,
991 SINGLE_VALUE_TYPE(switches::kDisableMinimizeOnSecondLauncherItemClick)
992 },
993 {
994 "show-touch-hud",
995 IDS_FLAGS_SHOW_TOUCH_HUD_NAME,
996 IDS_FLAGS_SHOW_TOUCH_HUD_DESCRIPTION,
997 kOsAll,
998 SINGLE_VALUE_TYPE(ash::switches::kAshTouchHud)
999 },
1000 {
1001 "enable-pinch",
1002 IDS_FLAGS_ENABLE_PINCH_SCALE_NAME,
1003 IDS_FLAGS_ENABLE_PINCH_SCALE_DESCRIPTION,
1004 kOsLinux | kOsWin | kOsCrOS,
1005 ENABLE_DISABLE_VALUE_TYPE(switches::kEnablePinch, switches::kDisablePinch),
1006 },
1007 #endif // defined(USE_ASH)
1008 {
1009 "enable-pinch-virtual-viewport",
1010 IDS_FLAGS_ENABLE_PINCH_VIRTUAL_VIEWPORT_NAME,
1011 IDS_FLAGS_ENABLE_PINCH_VIRTUAL_VIEWPORT_DESCRIPTION,
1012 kOsLinux | kOsWin | kOsCrOS | kOsAndroid,
1013 ENABLE_DISABLE_VALUE_TYPE(
1014 cc::switches::kEnablePinchVirtualViewport,
1015 cc::switches::kDisablePinchVirtualViewport),
1016 },
1017 {
1018 "enable-viewport-meta",
1019 IDS_FLAGS_ENABLE_VIEWPORT_META_NAME,
1020 IDS_FLAGS_ENABLE_VIEWPORT_META_DESCRIPTION,
1021 kOsLinux | kOsWin | kOsCrOS | kOsMac,
1022 SINGLE_VALUE_TYPE(switches::kEnableViewportMeta),
1023 },
1024 #if defined(OS_CHROMEOS)
1025 {
1026 "disable-boot-animation",
1027 IDS_FLAGS_DISABLE_BOOT_ANIMATION,
1028 IDS_FLAGS_DISABLE_BOOT_ANIMATION_DESCRIPTION,
1029 kOsCrOSOwnerOnly,
1030 SINGLE_VALUE_TYPE(chromeos::switches::kDisableBootAnimation),
1031 },
1032 {
1033 "enable-new-audio-player",
1034 IDS_FLAGS_FILE_MANAGER_ENABLE_NEW_AUDIO_PLAYER_NAME,
1035 IDS_FLAGS_FILE_MANAGER_ENABLE_NEW_AUDIO_PLAYER_DESCRIPTION,
1036 kOsCrOS,
1037 SINGLE_VALUE_TYPE(chromeos::switches::kFileManagerEnableNewAudioPlayer)
1038 },
1039 {
1040 "enable-new-gallery",
1041 IDS_FLAGS_FILE_MANAGER_ENABLE_NEW_GALLERY_NAME,
1042 IDS_FLAGS_FILE_MANAGER_ENABLE_NEW_GALLERY_DESCRIPTION,
1043 kOsCrOS,
1044 MULTI_VALUE_TYPE(kEnableFileManagerNewGalleryChoices)
1045 },
1046 {
1047 "disable-quickoffice-component-app",
1048 IDS_FLAGS_DISABLE_QUICKOFFICE_COMPONENT_APP_NAME,
1049 IDS_FLAGS_DISABLE_QUICKOFFICE_COMPONENT_APP_DESCRIPTION,
1050 kOsCrOS,
1051 SINGLE_VALUE_TYPE(chromeos::switches::kDisableQuickofficeComponentApp),
1052 },
1053 {
1054 "disable-saml-signin",
1055 IDS_FLAGS_DISABLE_SAML_SIGNIN_NAME,
1056 IDS_FLAGS_DISABLE_SAML_SIGNIN_DESCRIPTION,
1057 kOsCrOS,
1058 SINGLE_VALUE_TYPE(chromeos::switches::kDisableSamlSignin),
1059 },
1060 {
1061 "disable-display-color-calibration",
1062 IDS_FLAGS_DISABLE_DISPLAY_COLOR_CALIBRATION_NAME,
1063 IDS_FLAGS_DISABLE_DISPLAY_COLOR_CALIBRATION_DESCRIPTION,
1064 kOsCrOS,
1065 SINGLE_VALUE_TYPE(ui::switches::kDisableDisplayColorCalibration),
1066 },
1067 #endif // defined(OS_CHROMEOS)
1068 { "disable-accelerated-video-decode",
1069 IDS_FLAGS_DISABLE_ACCELERATED_VIDEO_DECODE_NAME,
1070 IDS_FLAGS_DISABLE_ACCELERATED_VIDEO_DECODE_DESCRIPTION,
1071 kOsWin | kOsCrOS,
1072 SINGLE_VALUE_TYPE(switches::kDisableAcceleratedVideoDecode),
1073 },
1074 #if defined(USE_ASH)
1075 {
1076 "ash-debug-shortcuts",
1077 IDS_FLAGS_DEBUG_SHORTCUTS_NAME,
1078 IDS_FLAGS_DEBUG_SHORTCUTS_DESCRIPTION,
1079 kOsAll,
1080 SINGLE_VALUE_TYPE(ash::switches::kAshDebugShortcuts),
1081 },
1082 { "ash-enable-touch-view-testing",
1083 IDS_FLAGS_ASH_ENABLE_TOUCH_VIEW_TESTING_NAME,
1084 IDS_FLAGS_ASH_ENABLE_TOUCH_VIEW_TESTING_DESCRIPTION,
1085 kOsCrOS,
1086 SINGLE_VALUE_TYPE(ash::switches::kAshEnableTouchViewTesting),
1087 },
1088 #endif
1089 #if defined(OS_CHROMEOS)
1090 {
1091 "enable-carrier-switching",
1092 IDS_FLAGS_ENABLE_CARRIER_SWITCHING,
1093 IDS_FLAGS_ENABLE_CARRIER_SWITCHING_DESCRIPTION,
1094 kOsCrOS,
1095 SINGLE_VALUE_TYPE(chromeos::switches::kEnableCarrierSwitching)
1096 },
1097 {
1098 "enable-request-tablet-site",
1099 IDS_FLAGS_ENABLE_REQUEST_TABLET_SITE_NAME,
1100 IDS_FLAGS_ENABLE_REQUEST_TABLET_SITE_DESCRIPTION,
1101 kOsCrOS,
1102 SINGLE_VALUE_TYPE(chromeos::switches::kEnableRequestTabletSite)
1103 },
1104 #endif
1105 {
1106 "debug-packed-apps",
1107 IDS_FLAGS_DEBUG_PACKED_APP_NAME,
1108 IDS_FLAGS_DEBUG_PACKED_APP_DESCRIPTION,
1109 kOsDesktop,
1110 SINGLE_VALUE_TYPE(switches::kDebugPackedApps)
1111 },
1112 {
1113 "enable-password-generation",
1114 IDS_FLAGS_ENABLE_PASSWORD_GENERATION_NAME,
1115 IDS_FLAGS_ENABLE_PASSWORD_GENERATION_DESCRIPTION,
1116 kOsDesktop,
1117 ENABLE_DISABLE_VALUE_TYPE(autofill::switches::kEnablePasswordGeneration,
1118 autofill::switches::kDisablePasswordGeneration)
1119 },
1120 {
1121 "enable-automatic-password-saving",
1122 IDS_FLAGS_ENABLE_AUTOMATIC_PASSWORD_SAVING_NAME,
1123 IDS_FLAGS_ENABLE_AUTOMATIC_PASSWORD_SAVING_DESCRIPTION,
1124 kOsDesktop,
1125 SINGLE_VALUE_TYPE(
1126 password_manager::switches::kEnableAutomaticPasswordSaving)
1127 },
1128 {
1129 "password-manager-reauthentication",
1130 IDS_FLAGS_PASSWORD_MANAGER_REAUTHENTICATION_NAME,
1131 IDS_FLAGS_PASSWORD_MANAGER_REAUTHENTICATION_DESCRIPTION,
1132 kOsMac | kOsWin,
1133 SINGLE_VALUE_TYPE(switches::kDisablePasswordManagerReauthentication)
1134 },
1135 {
1136 "enable-deferred-image-decoding",
1137 IDS_FLAGS_ENABLE_DEFERRED_IMAGE_DECODING_NAME,
1138 IDS_FLAGS_ENABLE_DEFERRED_IMAGE_DECODING_DESCRIPTION,
1139 kOsMac | kOsLinux | kOsCrOS,
1140 SINGLE_VALUE_TYPE(switches::kEnableDeferredImageDecoding)
1141 },
1142 {
1143 "performance-monitor-gathering",
1144 IDS_FLAGS_PERFORMANCE_MONITOR_GATHERING_NAME,
1145 IDS_FLAGS_PERFORMANCE_MONITOR_GATHERING_DESCRIPTION,
1146 kOsAll,
1147 SINGLE_VALUE_TYPE(switches::kPerformanceMonitorGathering)
1148 },
1149 {
1150 "wallet-service-use-sandbox",
1151 IDS_FLAGS_WALLET_SERVICE_USE_SANDBOX_NAME,
1152 IDS_FLAGS_WALLET_SERVICE_USE_SANDBOX_DESCRIPTION,
1153 kOsAndroid | kOsDesktop,
1154 ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(
1155 autofill::switches::kWalletServiceUseSandbox, "1",
1156 autofill::switches::kWalletServiceUseSandbox, "0")
1157 },
1158 #if defined(USE_AURA)
1159 {
1160 "overscroll-history-navigation",
1161 IDS_FLAGS_OVERSCROLL_HISTORY_NAVIGATION_NAME,
1162 IDS_FLAGS_OVERSCROLL_HISTORY_NAVIGATION_DESCRIPTION,
1163 kOsAll,
1164 MULTI_VALUE_TYPE(kOverscrollHistoryNavigationChoices)
1165 },
1166 #endif
1167 {
1168 "scroll-end-effect",
1169 IDS_FLAGS_SCROLL_END_EFFECT_NAME,
1170 IDS_FLAGS_SCROLL_END_EFFECT_DESCRIPTION,
1171 kOsCrOS,
1172 ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(
1173 switches::kScrollEndEffect, "1",
1174 switches::kScrollEndEffect, "0")
1175 },
1176 {
1177 "enable-touch-drag-drop",
1178 IDS_FLAGS_ENABLE_TOUCH_DRAG_DROP_NAME,
1179 IDS_FLAGS_ENABLE_TOUCH_DRAG_DROP_DESCRIPTION,
1180 kOsWin | kOsCrOS,
1181 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableTouchDragDrop,
1182 switches::kDisableTouchDragDrop)
1183 },
1184 {
1185 "enable-touch-editing",
1186 IDS_FLAGS_ENABLE_TOUCH_EDITING_NAME,
1187 IDS_FLAGS_ENABLE_TOUCH_EDITING_DESCRIPTION,
1188 kOsCrOS | kOsWin | kOsLinux,
1189 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableTouchEditing,
1190 switches::kDisableTouchEditing)
1191 },
1192 {
1193 "enable-suggestions-service",
1194 IDS_FLAGS_ENABLE_SUGGESTIONS_SERVICE_NAME,
1195 IDS_FLAGS_ENABLE_SUGGESTIONS_SERVICE_DESCRIPTION,
1196 kOsAndroid | kOsCrOS,
1197 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableSuggestionsService,
1198 switches::kDisableSuggestionsService)
1199 },
1200 {
1201 "enable-sync-synced-notifications",
1202 IDS_FLAGS_ENABLE_SYNCED_NOTIFICATIONS_NAME,
1203 IDS_FLAGS_ENABLE_SYNCED_NOTIFICATIONS_DESCRIPTION,
1204 kOsDesktop,
1205 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableSyncSyncedNotifications,
1206 switches::kDisableSyncSyncedNotifications)
1207 },
1208 #if defined(ENABLE_APP_LIST)
1209 {
1210 "enable-sync-app-list",
1211 IDS_FLAGS_ENABLE_SYNC_APP_LIST_NAME,
1212 IDS_FLAGS_ENABLE_SYNC_APP_LIST_DESCRIPTION,
1213 kOsDesktop,
1214 MULTI_VALUE_TYPE(kEnableSyncAppListChoices)
1215 },
1216 #endif
1217 #if defined(OS_MACOSX)
1218 {
1219 "enable-avfoundation",
1220 IDS_FLAGS_ENABLE_AVFOUNDATION_NAME,
1221 IDS_FLAGS_ENABLE_AVFOUNDATION_DESCRIPTION,
1222 kOsMac,
1223 SINGLE_VALUE_TYPE(switches::kEnableAVFoundation)
1224 },
1225 #endif
1226 {
1227 "impl-side-painting",
1228 IDS_FLAGS_IMPL_SIDE_PAINTING_NAME,
1229 IDS_FLAGS_IMPL_SIDE_PAINTING_DESCRIPTION,
1230 kOsAll,
1231 MULTI_VALUE_TYPE(kImplSidePaintingChoices)
1232 },
1233 {
1234 "lcd-text-aa",
1235 IDS_FLAGS_LCD_TEXT_NAME,
1236 IDS_FLAGS_LCD_TEXT_DESCRIPTION,
1237 kOsDesktop,
1238 MULTI_VALUE_TYPE(kLCDTextChoices)
1239 },
1240 #if defined(OS_ANDROID) || defined(OS_MACOSX)
1241 {
1242 "delegated-renderer",
1243 IDS_FLAGS_DELEGATED_RENDERER_NAME,
1244 IDS_FLAGS_DELEGATED_RENDERER_DESCRIPTION,
1245 kOsAndroid, // TODO(ccameron) Add mac support soon.
1246 MULTI_VALUE_TYPE(kDelegatedRendererChoices)
1247 },
1248 #endif
1249 {
1250 "max-tiles-for-interest-area",
1251 IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_NAME,
1252 IDS_FLAGS_MAX_TILES_FOR_INTEREST_AREA_DESCRIPTION,
1253 kOsAll,
1254 MULTI_VALUE_TYPE(kMaxTilesForInterestAreaChoices)
1255 },
1256 {
1257 "enable-offline-auto-reload",
1258 IDS_FLAGS_ENABLE_OFFLINE_AUTO_RELOAD_NAME,
1259 IDS_FLAGS_ENABLE_OFFLINE_AUTO_RELOAD_DESCRIPTION,
1260 kOsAll,
1261 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableOfflineAutoReload,
1262 switches::kDisableOfflineAutoReload)
1263 },
1264 {
1265 "enable-offline-auto-reload-visible-only",
1266 IDS_FLAGS_ENABLE_OFFLINE_AUTO_RELOAD_VISIBLE_ONLY_NAME,
1267 IDS_FLAGS_ENABLE_OFFLINE_AUTO_RELOAD_VISIBLE_ONLY_DESCRIPTION,
1268 kOsAll,
1269 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableOfflineAutoReloadVisibleOnly,
1270 switches::kDisableOfflineAutoReloadVisibleOnly)
1271 },
1272 {
1273 "enable-offline-load-stale-cache",
1274 IDS_FLAGS_ENABLE_OFFLINE_LOAD_STALE_NAME,
1275 IDS_FLAGS_ENABLE_OFFLINE_LOAD_STALE_DESCRIPTION,
1276 kOsLinux | kOsMac | kOsWin | kOsAndroid,
1277 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableOfflineLoadStaleCache,
1278 switches::kDisableOfflineLoadStaleCache)
1279 },
1280 {
1281 "default-tile-width",
1282 IDS_FLAGS_DEFAULT_TILE_WIDTH_NAME,
1283 IDS_FLAGS_DEFAULT_TILE_WIDTH_DESCRIPTION,
1284 kOsAll,
1285 MULTI_VALUE_TYPE(kDefaultTileWidthChoices)
1286 },
1287 {
1288 "default-tile-height",
1289 IDS_FLAGS_DEFAULT_TILE_HEIGHT_NAME,
1290 IDS_FLAGS_DEFAULT_TILE_HEIGHT_DESCRIPTION,
1291 kOsAll,
1292 MULTI_VALUE_TYPE(kDefaultTileHeightChoices)
1293 },
1294 #if defined(OS_ANDROID)
1295 {
1296 "disable-gesture-requirement-for-media-playback",
1297 IDS_FLAGS_DISABLE_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK_NAME,
1298 IDS_FLAGS_DISABLE_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK_DESCRIPTION,
1299 kOsAndroid,
1300 SINGLE_VALUE_TYPE(switches::kDisableGestureRequirementForMediaPlayback)
1301 },
1302 #endif
1303 #if defined(OS_CHROMEOS)
1304 {
1305 "enable-virtual-keyboard",
1306 IDS_FLAGS_ENABLE_VIRTUAL_KEYBOARD_NAME,
1307 IDS_FLAGS_ENABLE_VIRTUAL_KEYBOARD_DESCRIPTION,
1308 kOsCrOS,
1309 SINGLE_VALUE_TYPE(keyboard::switches::kEnableVirtualKeyboard)
1310 },
1311 {
1312 "enable-virtual-keyboard-overscroll",
1313 IDS_FLAGS_ENABLE_VIRTUAL_KEYBOARD_OVERSCROLL_NAME,
1314 IDS_FLAGS_ENABLE_VIRTUAL_KEYBOARD_OVERSCROLL_DESCRIPTION,
1315 kOsCrOS,
1316 ENABLE_DISABLE_VALUE_TYPE(
1317 keyboard::switches::kEnableVirtualKeyboardOverscroll,
1318 keyboard::switches::kDisableVirtualKeyboardOverscroll)
1319 },
1320 {
1321 "enable-swipe-selection",
1322 IDS_FLAGS_ENABLE_SWIPE_SELECTION_NAME,
1323 IDS_FLAGS_ENABLE_SWIPE_SELECTION_DESCRIPTION,
1324 kOsCrOS,
1325 SINGLE_VALUE_TYPE(keyboard::switches::kEnableSwipeSelection)
1326 },
1327 {
1328 "enable-input-view",
1329 IDS_FLAGS_ENABLE_INPUT_VIEW_NAME,
1330 IDS_FLAGS_ENABLE_INPUT_VIEW_DESCRIPTION,
1331 kOsCrOS,
1332 ENABLE_DISABLE_VALUE_TYPE(keyboard::switches::kEnableInputView,
1333 keyboard::switches::kDisableInputView)
1334 },
1335 {
1336 "enable-experimental-input-view-features",
1337 IDS_FLAGS_ENABLE_EXPERIMENTAL_INPUT_VIEW_FEATURES_NAME,
1338 IDS_FLAGS_ENABLE_EXPERIMENTAL_INPUT_VIEW_FEATURES_DESCRIPTION,
1339 kOsCrOS,
1340 SINGLE_VALUE_TYPE(keyboard::switches::kEnableExperimentalInputViewFeatures)
1341 },
1342 #endif
1343 {
1344 "enable-simple-cache-backend",
1345 IDS_FLAGS_ENABLE_SIMPLE_CACHE_BACKEND_NAME,
1346 IDS_FLAGS_ENABLE_SIMPLE_CACHE_BACKEND_DESCRIPTION,
1347 kOsWin | kOsMac | kOsLinux | kOsCrOS,
1348 MULTI_VALUE_TYPE(kSimpleCacheBackendChoices)
1349 },
1350 {
1351 "enable-tcp-fast-open",
1352 IDS_FLAGS_ENABLE_TCP_FAST_OPEN_NAME,
1353 IDS_FLAGS_ENABLE_TCP_FAST_OPEN_DESCRIPTION,
1354 kOsLinux | kOsCrOS | kOsAndroid,
1355 SINGLE_VALUE_TYPE(switches::kEnableTcpFastOpen)
1356 },
1357 {
1358 "enable-syncfs-directory-operation",
1359 IDS_FLAGS_ENABLE_SYNC_DIRECTORY_OPERATION_NAME,
1360 IDS_FLAGS_ENABLE_SYNC_DIRECTORY_OPERATION_DESCRIPTION,
1361 kOsAll,
1362 SINGLE_VALUE_TYPE(switches::kSyncfsEnableDirectoryOperation),
1363 },
1364 #if defined(ENABLE_SERVICE_DISCOVERY)
1365 {
1366 "disable-device-discovery",
1367 IDS_FLAGS_DISABLE_DEVICE_DISCOVERY_NAME,
1368 IDS_FLAGS_DISABLE_DEVICE_DISCOVERY_DESCRIPTION,
1369 kOsDesktop,
1370 SINGLE_VALUE_TYPE(switches::kDisableDeviceDiscovery)
1371 },
1372 {
1373 "device-discovery-notifications",
1374 IDS_FLAGS_DEVICE_DISCOVERY_NOTIFICATIONS_NAME,
1375 IDS_FLAGS_DEVICE_DISCOVERY_NOTIFICATIONS_DESCRIPTION,
1376 kOsDesktop,
1377 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableDeviceDiscoveryNotifications,
1378 switches::kDisableDeviceDiscoveryNotifications)
1379 },
1380 {
1381 "enable-cloud-devices",
1382 IDS_FLAGS_ENABLE_CLOUD_DEVICES_NAME,
1383 IDS_FLAGS_ENABLE_CLOUD_DEVICES_DESCRIPTION,
1384 kOsDesktop,
1385 SINGLE_VALUE_TYPE(switches::kEnableCloudDevices)
1386 },
1387 {
1388 "enable-print-preview-register-promos",
1389 IDS_FLAGS_ENABLE_PRINT_PREVIEW_REGISTER_PROMOS_NAME,
1390 IDS_FLAGS_ENABLE_PRINT_PREVIEW_REGISTER_PROMOS_DESCRIPTION,
1391 kOsDesktop,
1392 SINGLE_VALUE_TYPE(switches::kEnablePrintPreviewRegisterPromos)
1393 },
1394 #endif // ENABLE_SERVICE_DISCOVERY
1395 #if defined(OS_WIN)
1396 {
1397 "enable-cloud-print-xps",
1398 IDS_FLAGS_ENABLE_CLOUD_PRINT_XPS_NAME,
1399 IDS_FLAGS_ENABLE_CLOUD_PRINT_XPS_DESCRIPTION,
1400 kOsWin,
1401 SINGLE_VALUE_TYPE(switches::kEnableCloudPrintXps)
1402 },
1403 #endif
1404 #if defined(OS_MACOSX)
1405 {
1406 "enable-simplified-fullscreen",
1407 IDS_FLAGS_ENABLE_SIMPLIFIED_FULLSCREEN_NAME,
1408 IDS_FLAGS_ENABLE_SIMPLIFIED_FULLSCREEN_DESCRIPTION,
1409 kOsMac,
1410 SINGLE_VALUE_TYPE(switches::kEnableSimplifiedFullscreen)
1411 },
1412 #endif
1413 #if defined(USE_AURA)
1414 {
1415 "tab-capture-upscale-quality",
1416 IDS_FLAGS_TAB_CAPTURE_UPSCALE_QUALITY_NAME,
1417 IDS_FLAGS_TAB_CAPTURE_UPSCALE_QUALITY_DESCRIPTION,
1418 kOsAll,
1419 MULTI_VALUE_TYPE(kTabCaptureUpscaleQualityChoices)
1420 },
1421 {
1422 "tab-capture-downscale-quality",
1423 IDS_FLAGS_TAB_CAPTURE_DOWNSCALE_QUALITY_NAME,
1424 IDS_FLAGS_TAB_CAPTURE_DOWNSCALE_QUALITY_DESCRIPTION,
1425 kOsAll,
1426 MULTI_VALUE_TYPE(kTabCaptureDownscaleQualityChoices)
1427 },
1428 #endif
1429 {
1430 "enable-spelling-feedback-field-trial",
1431 IDS_FLAGS_ENABLE_SPELLING_FEEDBACK_FIELD_TRIAL_NAME,
1432 IDS_FLAGS_ENABLE_SPELLING_FEEDBACK_FIELD_TRIAL_DESCRIPTION,
1433 kOsAll,
1434 SINGLE_VALUE_TYPE(switches::kEnableSpellingFeedbackFieldTrial)
1435 },
1436 {
1437 "enable-webgl-draft-extensions",
1438 IDS_FLAGS_ENABLE_WEBGL_DRAFT_EXTENSIONS_NAME,
1439 IDS_FLAGS_ENABLE_WEBGL_DRAFT_EXTENSIONS_DESCRIPTION,
1440 kOsAll,
1441 SINGLE_VALUE_TYPE(switches::kEnableWebGLDraftExtensions)
1442 },
1443 {
1444 "enable-web-midi",
1445 IDS_FLAGS_ENABLE_WEB_MIDI_NAME,
1446 IDS_FLAGS_ENABLE_WEB_MIDI_DESCRIPTION,
1447 kOsMac | kOsWin | kOsLinux | kOsCrOS | kOsAndroid,
1448 SINGLE_VALUE_TYPE(switches::kEnableWebMIDI)
1449 },
1450 {
1451 "enable-new-profile-management",
1452 IDS_FLAGS_ENABLE_NEW_PROFILE_MANAGEMENT_NAME,
1453 IDS_FLAGS_ENABLE_NEW_PROFILE_MANAGEMENT_DESCRIPTION,
1454 kOsAndroid | kOsMac | kOsWin | kOsLinux | kOsCrOS,
1455 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableNewProfileManagement,
1456 switches::kDisableNewProfileManagement)
1457 },
1458 {
1459 "enable-account-consistency",
1460 IDS_FLAGS_ENABLE_ACCOUNT_CONSISTENCY_NAME,
1461 IDS_FLAGS_ENABLE_ACCOUNT_CONSISTENCY_DESCRIPTION,
1462 kOsAndroid | kOsMac | kOsWin | kOsLinux | kOsCrOS,
1463 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAccountConsistency,
1464 switches::kDisableAccountConsistency)
1465 },
1466 {
1467 "enable-fast-user-switching",
1468 IDS_FLAGS_ENABLE_FAST_USER_SWITCHING_NAME,
1469 IDS_FLAGS_ENABLE_FAST_USER_SWITCHING_DESCRIPTION,
1470 kOsMac | kOsWin | kOsLinux,
1471 SINGLE_VALUE_TYPE(switches::kFastUserSwitching)
1472 },
1473 {
1474 "enable-new-avatar-menu",
1475 IDS_FLAGS_ENABLE_NEW_AVATAR_MENU_NAME,
1476 IDS_FLAGS_ENABLE_NEW_AVATAR_MENU_DESCRIPTION,
1477 kOsMac | kOsWin | kOsLinux,
1478 SINGLE_VALUE_TYPE(switches::kNewAvatarMenu)
1479 },
1480 {
1481 "enable-web-based-signin",
1482 IDS_FLAGS_ENABLE_WEB_BASED_SIGNIN_NAME,
1483 IDS_FLAGS_ENABLE_WEB_BASED_SIGNIN_DESCRIPTION,
1484 kOsMac | kOsWin | kOsLinux,
1485 SINGLE_VALUE_TYPE(switches::kEnableWebBasedSignin)
1486 },
1487 {
1488 "enable-google-profile-info",
1489 IDS_FLAGS_ENABLE_GOOGLE_PROFILE_INFO_NAME,
1490 IDS_FLAGS_ENABLE_GOOGLE_PROFILE_INFO_DESCRIPTION,
1491 kOsMac | kOsWin | kOsLinux,
1492 SINGLE_VALUE_TYPE(switches::kGoogleProfileInfo)
1493 },
1494 {
1495 "reset-app-list-install-state",
1496 IDS_FLAGS_RESET_APP_LIST_INSTALL_STATE_NAME,
1497 IDS_FLAGS_RESET_APP_LIST_INSTALL_STATE_DESCRIPTION,
1498 kOsMac | kOsWin | kOsLinux,
1499 SINGLE_VALUE_TYPE(switches::kResetAppListInstallState)
1500 },
1501 #if defined(ENABLE_APP_LIST)
1502 #if defined(OS_LINUX)
1503 {
1504 // This is compiled out on non-Linux platforms because otherwise it would be
1505 // visible on Win/Mac/CrOS but not on Linux GTK, which would be confusing.
1506 // TODO(mgiuca): Remove the #if when Aura is the default on Linux.
1507 "enable-app-list",
1508 IDS_FLAGS_ENABLE_APP_LIST_NAME,
1509 IDS_FLAGS_ENABLE_APP_LIST_DESCRIPTION,
1510 kOsLinux,
1511 SINGLE_VALUE_TYPE(switches::kEnableAppList)
1512 },
1513 #endif
1514 {
1515 "disable-app-list-app-info",
1516 IDS_FLAGS_DISABLE_APP_INFO_IN_APP_LIST,
1517 IDS_FLAGS_DISABLE_APP_INFO_IN_APP_LIST_DESCRIPTION,
1518 kOsLinux | kOsWin | kOsCrOS,
1519 SINGLE_VALUE_TYPE(app_list::switches::kDisableAppInfo)
1520 },
1521 {
1522 "disable-app-list-voice-search",
1523 IDS_FLAGS_DISABLE_APP_LIST_VOICE_SEARCH,
1524 IDS_FLAGS_DISABLE_APP_LIST_VOICE_SEARCH_DESCRIPTION,
1525 kOsCrOS,
1526 SINGLE_VALUE_TYPE(app_list::switches::kDisableVoiceSearch)
1527 },
1528 {
1529 "enable-drive-apps-in-app-list",
1530 IDS_FLAGS_ENABLE_DRIVE_APPS_IN_APP_LIST_NAME,
1531 IDS_FLAGS_ENABLE_DRIVE_APPS_IN_APP_LIST_DESCRIPTION,
1532 kOsDesktop,
1533 SINGLE_VALUE_TYPE(app_list::switches::kEnableDriveAppsInAppList)
1534 },
1535 #endif
1536 #if defined(OS_ANDROID)
1537 {
1538 "enable-accessibility-tab-switcher",
1539 IDS_FLAGS_ENABLE_ACCESSIBILITY_TAB_SWITCHER_NAME,
1540 IDS_FLAGS_ENABLE_ACCESSIBILITY_TAB_SWITCHER_DESCRIPTION,
1541 kOsAndroid,
1542 SINGLE_VALUE_TYPE(switches::kEnableAccessibilityTabSwitcher)
1543 },
1544 {
1545 // TODO(dmazzoni): remove this flag when native android accessibility
1546 // ships in the stable channel. http://crbug.com/356775
1547 "enable-accessibility-script-injection",
1548 IDS_FLAGS_ENABLE_ACCESSIBILITY_SCRIPT_INJECTION_NAME,
1549 IDS_FLAGS_ENABLE_ACCESSIBILITY_SCRIPT_INJECTION_DESCRIPTION,
1550 kOsAndroid,
1551 // Java-only switch: ContentSwitches.ENABLE_ACCESSIBILITY_SCRIPT_INJECTION.
1552 SINGLE_VALUE_TYPE("enable-accessibility-script-injection")
1553 },
1554 #endif
1555 {
1556 "enable-one-copy",
1557 IDS_FLAGS_ONE_COPY_NAME,
1558 IDS_FLAGS_ONE_COPY_DESCRIPTION,
1559 kOsAll,
1560 SINGLE_VALUE_TYPE(switches::kEnableOneCopy)
1561 },
1562 {
1563 "enable-zero-copy",
1564 IDS_FLAGS_ZERO_COPY_NAME,
1565 IDS_FLAGS_ZERO_COPY_DESCRIPTION,
1566 kOsAll,
1567 MULTI_VALUE_TYPE(kZeroCopyChoices)
1568 },
1569 #if defined(OS_CHROMEOS)
1570 {
1571 "enable-first-run-ui-transitions",
1572 IDS_FLAGS_ENABLE_FIRST_RUN_UI_TRANSITIONS_NAME,
1573 IDS_FLAGS_ENABLE_FIRST_RUN_UI_TRANSITIONS_DESCRIPTION,
1574 kOsCrOS,
1575 SINGLE_VALUE_TYPE(chromeos::switches::kEnableFirstRunUITransitions)
1576 },
1577 #endif
1578 {
1579 "disable-compositor-touch-hit-testing",
1580 IDS_FLAGS_DISABLE_COMPOSITOR_TOUCH_HIT_TESTING_NAME,
1581 IDS_FLAGS_DISABLE_COMPOSITOR_TOUCH_HIT_TESTING_DESCRIPTION,
1582 kOsAll,
1583 SINGLE_VALUE_TYPE(cc::switches::kDisableCompositorTouchHitTesting),
1584 },
1585 {
1586 "enable-streamlined-hosted-apps",
1587 IDS_FLAGS_ENABLE_STREAMLINED_HOSTED_APPS_NAME,
1588 IDS_FLAGS_ENABLE_STREAMLINED_HOSTED_APPS_DESCRIPTION,
1589 kOsWin | kOsCrOS | kOsLinux,
1590 SINGLE_VALUE_TYPE(switches::kEnableStreamlinedHostedApps)
1591 },
1592 {
1593 "enable-prominent-url-app-flow",
1594 IDS_FLAGS_ENABLE_PROMINENT_URL_APP_FLOW_NAME,
1595 IDS_FLAGS_ENABLE_PROMINENT_URL_APP_FLOW_DESCRIPTION,
1596 kOsWin | kOsCrOS | kOsLinux,
1597 SINGLE_VALUE_TYPE(switches::kEnableProminentURLAppFlow)
1598 },
1599 {
1600 "enable-ephemeral-apps",
1601 IDS_FLAGS_ENABLE_EPHEMERAL_APPS_NAME,
1602 IDS_FLAGS_ENABLE_EPHEMERAL_APPS_DESCRIPTION,
1603 kOsAll,
1604 SINGLE_VALUE_TYPE(switches::kEnableEphemeralApps)
1605 },
1606 {
1607 "enable-linkable-ephemeral-apps",
1608 IDS_FLAGS_ENABLE_LINKABLE_EPHEMERAL_APPS_NAME,
1609 IDS_FLAGS_ENABLE_LINKABLE_EPHEMERAL_APPS_DESCRIPTION,
1610 kOsAll,
1611 SINGLE_VALUE_TYPE(switches::kEnableLinkableEphemeralApps)
1612 },
1613 {
1614 "enable-service-worker",
1615 IDS_FLAGS_ENABLE_SERVICE_WORKER_NAME,
1616 IDS_FLAGS_ENABLE_SERVICE_WORKER_DESCRIPTION,
1617 kOsAll,
1618 SINGLE_VALUE_TYPE(switches::kEnableServiceWorker)
1619 },
1620 {
1621 "enable-service-worker-sync",
1622 IDS_FLAGS_ENABLE_SERVICE_WORKER_SYNC_NAME,
1623 IDS_FLAGS_ENABLE_SERVICE_WORKER_SYNC_DESCRIPTION,
1624 kOsAll,
1625 SINGLE_VALUE_TYPE(switches::kEnableServiceWorkerSync)
1626 },
1627 #if defined(OS_ANDROID)
1628 {
1629 "disable-click-delay",
1630 IDS_FLAGS_DISABLE_CLICK_DELAY_NAME,
1631 IDS_FLAGS_DISABLE_CLICK_DELAY_DESCRIPTION,
1632 kOsAndroid,
1633 // Java-only switch: CommandLine.DISABLE_CLICK_DELAY
1634 SINGLE_VALUE_TYPE("disable-click-delay")
1635 },
1636 #endif
1637 #if defined(OS_MACOSX)
1638 {
1639 "enable-translate-new-ux",
1640 IDS_FLAGS_ENABLE_TRANSLATE_NEW_UX_NAME,
1641 IDS_FLAGS_ENABLE_TRANSLATE_NEW_UX_DESCRIPTION,
1642 kOsMac,
1643 SINGLE_VALUE_TYPE(switches::kEnableTranslateNewUX)
1644 },
1645 #endif
1646 #if defined(TOOLKIT_VIEWS)
1647 {
1648 "disable-views-rect-based-targeting", // FLAGS:RECORD_UMA
1649 IDS_FLAGS_DISABLE_VIEWS_RECT_BASED_TARGETING_NAME,
1650 IDS_FLAGS_DISABLE_VIEWS_RECT_BASED_TARGETING_DESCRIPTION,
1651 kOsCrOS | kOsWin,
1652 SINGLE_VALUE_TYPE(views::switches::kDisableViewsRectBasedTargeting)
1653 },
1654 #endif
1655 {
1656 "enable-apps-show-on-first-paint",
1657 IDS_FLAGS_ENABLE_APPS_SHOW_ON_FIRST_PAINT_NAME,
1658 IDS_FLAGS_ENABLE_APPS_SHOW_ON_FIRST_PAINT_DESCRIPTION,
1659 kOsDesktop,
1660 SINGLE_VALUE_TYPE(switches::kEnableAppsShowOnFirstPaint)
1661 },
1662 {
1663 "enhanced-bookmarks-experiment",
1664 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_NAME,
1665 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_DESCRIPTION,
1666 kOsDesktop,
1667 ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(
1668 switches::kEnhancedBookmarksExperiment, "1",
1669 switches::kEnhancedBookmarksExperiment, "0")
1670 },
1671 {
1672 "manual-enhanced-bookmarks",
1673 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_NAME,
1674 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_DESCRIPTION,
1675 kOsDesktop,
1676 SINGLE_VALUE_TYPE(switches::kManualEnhancedBookmarks)
1677 },
1678 {
1679 "manual-enhanced-bookmarks-optout",
1680 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_NAME,
1681 IDS_FLAGS_ENABLE_ENHANCED_BOOKMARKS_DESCRIPTION,
1682 kOsDesktop,
1683 SINGLE_VALUE_TYPE(switches::kManualEnhancedBookmarksOptout)
1684 },
1685 #if defined(OS_ANDROID)
1686 {
1687 "enable-zero-suggest-experiment",
1688 IDS_FLAGS_ZERO_SUGGEST_EXPERIMENT_NAME,
1689 IDS_FLAGS_ZERO_SUGGEST_EXPERIMENT_DESCRIPTION,
1690 kOsAndroid,
1691 MULTI_VALUE_TYPE(kZeroSuggestExperimentsChoices)
1692 },
1693 #endif
1694 {
1695 "num-raster-threads",
1696 IDS_FLAGS_NUM_RASTER_THREADS_NAME,
1697 IDS_FLAGS_NUM_RASTER_THREADS_DESCRIPTION,
1698 kOsAll,
1699 MULTI_VALUE_TYPE(kNumRasterThreadsChoices)
1700 },
1701 {
1702 "origin-chip-in-omnibox",
1703 IDS_FLAGS_ORIGIN_CHIP_NAME,
1704 IDS_FLAGS_ORIGIN_CHIP_DESCRIPTION,
1705 kOsCrOS | kOsMac | kOsWin | kOsLinux,
1706 MULTI_VALUE_TYPE(kOriginChipChoices)
1707 },
1708 {
1709 "search-button-in-omnibox",
1710 IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_NAME,
1711 IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_DESCRIPTION,
1712 kOsCrOS | kOsMac | kOsWin | kOsLinux,
1713 MULTI_VALUE_TYPE(kSearchButtonInOmniboxChoices)
1714 },
1715 {
1716 "disable-ignore-autocomplete-off",
1717 IDS_FLAGS_DISABLE_IGNORE_AUTOCOMPLETE_OFF_NAME,
1718 IDS_FLAGS_DISABLE_IGNORE_AUTOCOMPLETE_OFF_DESCRIPTION,
1719 kOsAll,
1720 SINGLE_VALUE_TYPE(autofill::switches::kDisableIgnoreAutocompleteOff)
1721 },
1722 {
1723 "enable-permissions-bubbles",
1724 IDS_FLAGS_ENABLE_PERMISSIONS_BUBBLES_NAME,
1725 IDS_FLAGS_ENABLE_PERMISSIONS_BUBBLES_DESCRIPTION,
1726 kOsAll,
1727 ENABLE_DISABLE_VALUE_TYPE(switches::kEnablePermissionsBubbles,
1728 switches::kDisablePermissionsBubbles)
1729 },
1730 {
1731 "enable-session-crashed-bubble",
1732 IDS_FLAGS_ENABLE_SESSION_CRASHED_BUBBLE_NAME,
1733 IDS_FLAGS_ENABLE_SESSION_CRASHED_BUBBLE_DESCRIPTION,
1734 kOsWin | kOsLinux,
1735 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableSessionCrashedBubble,
1736 switches::kDisableSessionCrashedBubble)
1737 },
1738 {
1739 "out-of-process-pdf",
1740 IDS_FLAGS_OUT_OF_PROCESS_PDF_NAME,
1741 IDS_FLAGS_OUT_OF_PROCESS_PDF_DESCRIPTION,
1742 kOsDesktop,
1743 SINGLE_VALUE_TYPE(switches::kOutOfProcessPdf)
1744 },
1745 #if defined(OS_ANDROID)
1746 {
1747 "enable-fast-text-autosizing",
1748 IDS_FLAGS_ENABLE_FAST_TEXT_AUTOSIZING_NAME,
1749 IDS_FLAGS_ENABLE_FAST_TEXT_AUTOSIZING_DESCRIPTION,
1750 kOsAndroid,
1751 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableFastTextAutosizing,
1752 switches::kDisableFastTextAutosizing)
1753 },
1754 {
1755 "disable-cast",
1756 IDS_FLAGS_DISABLE_CAST_NAME,
1757 IDS_FLAGS_DISABLE_CAST_DESCRIPTION,
1758 kOsAndroid,
1759 SINGLE_VALUE_TYPE(switches::kDisableCast)
1760 },
1761 {
1762 "prefetch-search-results",
1763 IDS_FLAGS_PREFETCH_SEARCH_RESULTS_NAME,
1764 IDS_FLAGS_PREFETCH_SEARCH_RESULTS_DESCRIPTION,
1765 kOsAndroid,
1766 SINGLE_VALUE_TYPE(switches::kPrefetchSearchResults)
1767 },
1768 #endif
1769 #if defined(ENABLE_APP_LIST)
1770 {
1771 "enable-experimental-app-list",
1772 IDS_FLAGS_ENABLE_EXPERIMENTAL_APP_LIST_NAME,
1773 IDS_FLAGS_ENABLE_EXPERIMENTAL_APP_LIST_DESCRIPTION,
1774 kOsWin | kOsLinux | kOsCrOS,
1775 SINGLE_VALUE_TYPE(app_list::switches::kEnableExperimentalAppList)
1776 },
1777 {
1778 "enable-centered-app-list",
1779 IDS_FLAGS_ENABLE_CENTERED_APP_LIST_NAME,
1780 IDS_FLAGS_ENABLE_CENTERED_APP_LIST_DESCRIPTION,
1781 kOsWin | kOsLinux | kOsCrOS,
1782 SINGLE_VALUE_TYPE(app_list::switches::kEnableCenteredAppList)
1783 },
1784 #endif
1785 {
1786 "touch-scrolling-mode",
1787 IDS_FLAGS_TOUCH_SCROLLING_MODE_NAME,
1788 IDS_FLAGS_TOUCH_SCROLLING_MODE_DESCRIPTION,
1789 kOsWin | kOsLinux | kOsCrOS | kOsAndroid,
1790 MULTI_VALUE_TYPE(kTouchScrollingModeChoices)
1791 },
1792 {
1793 "bleeding-edge-renderer-mode",
1794 IDS_FLAGS_BLEEDING_RENDERER_NAME,
1795 IDS_FLAGS_BLEEDING_RENDERER_DESCRIPTION,
1796 kOsAndroid,
1797 SINGLE_VALUE_TYPE(switches::kEnableBleedingEdgeRenderingFastPaths)
1798 },
1799 {
1800 "enable-settings-window",
1801 IDS_FLAGS_ENABLE_SETTINGS_WINDOW_NAME,
1802 IDS_FLAGS_ENABLE_SETTINGS_WINDOW_DESCRIPTION,
1803 kOsDesktop,
1804 MULTI_VALUE_TYPE(kEnableSettingsWindowChoices)
1805 },
1806 #if defined(OS_ANDROID)
1807 {
1808 "enable-instant-search-clicks",
1809 IDS_FLAGS_ENABLE_INSTANT_SEARCH_CLICKS_NAME,
1810 IDS_FLAGS_ENABLE_INSTANT_SEARCH_CLICKS_DESCRIPTION,
1811 kOsAndroid,
1812 SINGLE_VALUE_TYPE(switches::kEnableInstantSearchClicks)
1813 },
1814 #endif
1815 {
1816 "enable-save-password-bubble",
1817 IDS_FLAGS_ENABLE_SAVE_PASSWORD_BUBBLE_NAME,
1818 IDS_FLAGS_ENABLE_SAVE_PASSWORD_BUBBLE_DESCRIPTION,
1819 kOsWin | kOsLinux | kOsCrOS,
1820 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableSavePasswordBubble,
1821 switches::kDisableSavePasswordBubble)
1822 },
1823 #if defined(GOOGLE_CHROME_BUILD)
1824 {
1825 "enable-easy-unlock",
1826 IDS_FLAGS_ENABLE_EASY_UNLOCK_NAME,
1827 IDS_FLAGS_ENABLE_EASY_UNLOCK_DESCRIPTION,
1828 kOsCrOS,
1829 SINGLE_VALUE_TYPE(switches::kEnableEasyUnlock)
1830 },
1831 #endif
1832 {
1833 "disable-embedded-shared-worker",
1834 IDS_FLAGS_DISABLE_EMBEDDED_SHARED_WORKER_NAME,
1835 IDS_FLAGS_DISABLE_EMBEDDED_SHARED_WORKER_DESCRIPTION,
1836 kOsDesktop,
1837 SINGLE_VALUE_TYPE(switches::kDisableEmbeddedSharedWorker)
1838 },
1839 #if defined(OS_CHROMEOS)
1840 {
1841 "enable-filemanager-mtp",
1842 IDS_FLAGS_ENABLE_FILE_MANAGER_MTP_NAME,
1843 IDS_FLAGS_ENABLE_FILE_MANAGER_MTP_DESCRIPTION,
1844 kOsCrOS,
1845 MULTI_VALUE_TYPE(kEnableFileManagerMTPChoices)
1846 },
1847 #endif
1848 // TODO(tyoshino): Remove this temporary flag and command line switch. See
1849 // crbug.com/366483 for the target milestone.
1850 {
1851 "allow-insecure-websocket-from-https-origin",
1852 IDS_FLAGS_ALLOW_INSECURE_WEBSOCKET_FROM_HTTPS_ORIGIN_NAME,
1853 IDS_FLAGS_ALLOW_INSECURE_WEBSOCKET_FROM_HTTPS_ORIGIN_DESCRIPTION,
1854 kOsAll,
1855 SINGLE_VALUE_TYPE(switches::kAllowInsecureWebSocketFromHttpsOrigin)
1856 },
1857 #if defined(OS_MACOSX)
1858 {
1859 "apps-keep-chrome-alive",
1860 IDS_FLAGS_APPS_KEEP_CHROME_ALIVE_NAME,
1861 IDS_FLAGS_APPS_KEEP_CHROME_ALIVE_DESCRIPTION,
1862 kOsMac,
1863 SINGLE_VALUE_TYPE(switches::kAppsKeepChromeAlive)
1864 },
1865 #endif
1866 {
1867 "enable-apps-file-associations",
1868 IDS_FLAGS_ENABLE_APPS_FILE_ASSOCIATIONS_NAME,
1869 IDS_FLAGS_ENABLE_APPS_FILE_ASSOCIATIONS_DESCRIPTION,
1870 kOsMac,
1871 SINGLE_VALUE_TYPE(switches::kEnableAppsFileAssociations)
1872 },
1873 #if defined(OS_ANDROID)
1874 {
1875 "enable-embeddedsearch-api",
1876 IDS_FLAGS_ENABLE_EMBEDDEDSEARCH_API_NAME,
1877 IDS_FLAGS_ENABLE_EMBEDDEDSEARCH_API_DESCRIPTION,
1878 kOsAndroid,
1879 SINGLE_VALUE_TYPE(switches::kEnableEmbeddedSearchAPI)
1880 },
1881 {
1882 "enable-app-install-alerts",
1883 IDS_FLAGS_ENABLE_APP_INSTALL_ALERTS_NAME,
1884 IDS_FLAGS_ENABLE_APP_INSTALL_ALERTS_DESCRIPTION,
1885 kOsAndroid,
1886 SINGLE_VALUE_TYPE(switches::kEnableAppInstallAlerts)
1887 },
1888 #endif
1889 {
1890 "distance-field-text",
1891 IDS_FLAGS_DISTANCE_FIELD_TEXT_NAME,
1892 IDS_FLAGS_DISTANCE_FIELD_TEXT_DESCRIPTION,
1893 kOsAll,
1894 MULTI_VALUE_TYPE(kDistanceFieldTextChoices)
1895 },
1896 {
1897 "extension-content-verification",
1898 IDS_FLAGS_EXTENSION_CONTENT_VERIFICATION_NAME,
1899 IDS_FLAGS_EXTENSION_CONTENT_VERIFICATION_DESCRIPTION,
1900 kOsDesktop,
1901 MULTI_VALUE_TYPE(kExtensionContentVerificationChoices)
1902 },
1903 #if defined(USE_AURA)
1904 {
1905 "text-input-focus-manager",
1906 IDS_FLAGS_TEXT_INPUT_FOCUS_MANAGER_NAME,
1907 IDS_FLAGS_TEXT_INPUT_FOCUS_MANAGER_DESCRIPTION,
1908 kOsCrOS | kOsLinux | kOsWin,
1909 ENABLE_DISABLE_VALUE_TYPE(switches::kEnableTextInputFocusManager,
1910 switches::kDisableTextInputFocusManager)
1911 },
1912 #endif
1913 {
1914 "extension-active-script-permission",
1915 IDS_FLAGS_USER_CONSENT_FOR_EXTENSION_SCRIPTS_NAME,
1916 IDS_FLAGS_USER_CONSENT_FOR_EXTENSION_SCRIPTS_DESCRIPTION,
1917 kOsAll,
1918 SINGLE_VALUE_TYPE(extensions::switches::kEnableScriptsRequireAction)
1919 },
1920 {
1921 "enable-harfbuzz-rendertext",
1922 IDS_FLAGS_ENABLE_HARFBUZZ_RENDERTEXT_NAME,
1923 IDS_FLAGS_ENABLE_HARFBUZZ_RENDERTEXT_DESCRIPTION,
1924 kOsDesktop,
1925 SINGLE_VALUE_TYPE(switches::kEnableHarfBuzzRenderText)
1926 },
1927 #if defined(OS_ANDROID)
1928 {
1929 "answers-in-suggest",
1930 IDS_FLAGS_ENABLE_ANSWERS_IN_SUGGEST_NAME,
1931 IDS_FLAGS_ENABLE_ANSWERS_IN_SUGGEST_DESCRIPTION,
1932 kOsAndroid,
1933 MULTI_VALUE_TYPE(kAnswersInSuggestChoices)
1934 },
1935 #endif
1936 {
1937 "ssl-interstitial-version",
1938 IDS_FLAGS_SSL_INTERSTITIAL_TRIAL_NAME,
1939 IDS_FLAGS_SSL_INTERSTITIAL_TRIAL_DESCRIPTION,
1940 kOsAll,
1941 MULTI_VALUE_TYPE(kSSLInterstitialVersions)
1942 },
1943 {
1944 "malware-interstitial-version",
1945 IDS_FLAGS_MALWARE_INTERSTITIAL_TRIAL_NAME,
1946 IDS_FLAGS_MALWARE_INTERSTITIAL_TRIAL_DESCRIPTION,
1947 kOsAll,
1948 MULTI_VALUE_TYPE(kMalwareInterstitialVersions)
1949 },
1950 #if defined(OS_ANDROID)
1951 {
1952 "enable-data-reduction-proxy-dev",
1953 IDS_FLAGS_ENABLE_DATA_REDUCTION_PROXY_DEV_NAME,
1954 IDS_FLAGS_ENABLE_DATA_REDUCTION_PROXY_DEV_DESCRIPTION,
1955 kOsAndroid,
1956 ENABLE_DISABLE_VALUE_TYPE(
1957 data_reduction_proxy::switches::kEnableDataReductionProxyDev,
1958 data_reduction_proxy::switches::kDisableDataReductionProxyDev)
1959 },
1960 #endif
1961 };
1962
1963 const Experiment* experiments = kExperiments;
1964 size_t num_experiments = arraysize(kExperiments);
1965
1966 // Stores and encapsulates the little state that about:flags has.
1967 class FlagsState {
1968 public:
FlagsState()1969 FlagsState() : needs_restart_(false) {}
1970 void ConvertFlagsToSwitches(FlagsStorage* flags_storage,
1971 CommandLine* command_line,
1972 SentinelsMode sentinels);
1973 bool IsRestartNeededToCommitChanges();
1974 void SetExperimentEnabled(
1975 FlagsStorage* flags_storage,
1976 const std::string& internal_name,
1977 bool enable);
1978 void RemoveFlagsSwitches(
1979 std::map<std::string, CommandLine::StringType>* switch_list);
1980 void ResetAllFlags(FlagsStorage* flags_storage);
1981 void reset();
1982
1983 // Returns the singleton instance of this class
GetInstance()1984 static FlagsState* GetInstance() {
1985 return Singleton<FlagsState>::get();
1986 }
1987
1988 private:
1989 bool needs_restart_;
1990 std::map<std::string, std::string> flags_switches_;
1991
1992 DISALLOW_COPY_AND_ASSIGN(FlagsState);
1993 };
1994
1995 // Adds the internal names for the specified experiment to |names|.
AddInternalName(const Experiment & e,std::set<std::string> * names)1996 void AddInternalName(const Experiment& e, std::set<std::string>* names) {
1997 if (e.type == Experiment::SINGLE_VALUE) {
1998 names->insert(e.internal_name);
1999 } else {
2000 DCHECK(e.type == Experiment::MULTI_VALUE ||
2001 e.type == Experiment::ENABLE_DISABLE_VALUE);
2002 for (int i = 0; i < e.num_choices; ++i)
2003 names->insert(e.NameForChoice(i));
2004 }
2005 }
2006
2007 // Confirms that an experiment is valid, used in a DCHECK in
2008 // SanitizeList below.
ValidateExperiment(const Experiment & e)2009 bool ValidateExperiment(const Experiment& e) {
2010 switch (e.type) {
2011 case Experiment::SINGLE_VALUE:
2012 DCHECK_EQ(0, e.num_choices);
2013 DCHECK(!e.choices);
2014 break;
2015 case Experiment::MULTI_VALUE:
2016 DCHECK_GT(e.num_choices, 0);
2017 DCHECK(e.choices);
2018 DCHECK(e.choices[0].command_line_switch);
2019 DCHECK_EQ('\0', e.choices[0].command_line_switch[0]);
2020 break;
2021 case Experiment::ENABLE_DISABLE_VALUE:
2022 DCHECK_EQ(3, e.num_choices);
2023 DCHECK(!e.choices);
2024 DCHECK(e.command_line_switch);
2025 DCHECK(e.command_line_value);
2026 DCHECK(e.disable_command_line_switch);
2027 DCHECK(e.disable_command_line_value);
2028 break;
2029 default:
2030 NOTREACHED();
2031 }
2032 return true;
2033 }
2034
2035 // Removes all experiments from prefs::kEnabledLabsExperiments that are
2036 // unknown, to prevent this list to become very long as experiments are added
2037 // and removed.
SanitizeList(FlagsStorage * flags_storage)2038 void SanitizeList(FlagsStorage* flags_storage) {
2039 std::set<std::string> known_experiments;
2040 for (size_t i = 0; i < num_experiments; ++i) {
2041 DCHECK(ValidateExperiment(experiments[i]));
2042 AddInternalName(experiments[i], &known_experiments);
2043 }
2044
2045 std::set<std::string> enabled_experiments = flags_storage->GetFlags();
2046
2047 std::set<std::string> new_enabled_experiments =
2048 base::STLSetIntersection<std::set<std::string> >(
2049 known_experiments, enabled_experiments);
2050
2051 if (new_enabled_experiments != enabled_experiments)
2052 flags_storage->SetFlags(new_enabled_experiments);
2053 }
2054
GetSanitizedEnabledFlags(FlagsStorage * flags_storage,std::set<std::string> * result)2055 void GetSanitizedEnabledFlags(
2056 FlagsStorage* flags_storage, std::set<std::string>* result) {
2057 SanitizeList(flags_storage);
2058 *result = flags_storage->GetFlags();
2059 }
2060
SkipConditionalExperiment(const Experiment & experiment)2061 bool SkipConditionalExperiment(const Experiment& experiment) {
2062 if (experiment.internal_name ==
2063 std::string("enhanced-bookmarks-experiment")) {
2064 CommandLine* command_line = CommandLine::ForCurrentProcess();
2065 // Dont't skip experiment if it has non default value.
2066 // It means user selected it.
2067 if (command_line->HasSwitch(switches::kEnhancedBookmarksExperiment))
2068 return false;
2069
2070 return !IsEnhancedBookmarksExperimentEnabled();
2071 }
2072 if ((experiment.internal_name == std::string("manual-enhanced-bookmarks")) ||
2073 (experiment.internal_name ==
2074 std::string("manual-enhanced-bookmarks-optout"))) {
2075 return true;
2076 }
2077
2078 #if defined(OS_ANDROID)
2079 // enable-data-reduction-proxy-dev is only available for the Dev channel.
2080 if (!strcmp("enable-data-reduction-proxy-dev", experiment.internal_name) &&
2081 chrome::VersionInfo::GetChannel() != chrome::VersionInfo::CHANNEL_DEV) {
2082 return true;
2083 }
2084 #endif
2085
2086 return false;
2087 }
2088
2089
2090 // Variant of GetSanitizedEnabledFlags that also removes any flags that aren't
2091 // enabled on the current platform.
GetSanitizedEnabledFlagsForCurrentPlatform(FlagsStorage * flags_storage,std::set<std::string> * result)2092 void GetSanitizedEnabledFlagsForCurrentPlatform(
2093 FlagsStorage* flags_storage, std::set<std::string>* result) {
2094 GetSanitizedEnabledFlags(flags_storage, result);
2095
2096 // Filter out any experiments that aren't enabled on the current platform. We
2097 // don't remove these from prefs else syncing to a platform with a different
2098 // set of experiments would be lossy.
2099 std::set<std::string> platform_experiments;
2100 int current_platform = GetCurrentPlatform();
2101 for (size_t i = 0; i < num_experiments; ++i) {
2102 if (experiments[i].supported_platforms & current_platform)
2103 AddInternalName(experiments[i], &platform_experiments);
2104 #if defined(OS_CHROMEOS)
2105 if (experiments[i].supported_platforms & kOsCrOSOwnerOnly)
2106 AddInternalName(experiments[i], &platform_experiments);
2107 #endif
2108 }
2109
2110 std::set<std::string> new_enabled_experiments =
2111 base::STLSetIntersection<std::set<std::string> >(
2112 platform_experiments, *result);
2113
2114 result->swap(new_enabled_experiments);
2115 }
2116
2117 // Returns the Value representing the choice data in the specified experiment.
CreateChoiceData(const Experiment & experiment,const std::set<std::string> & enabled_experiments)2118 base::Value* CreateChoiceData(
2119 const Experiment& experiment,
2120 const std::set<std::string>& enabled_experiments) {
2121 DCHECK(experiment.type == Experiment::MULTI_VALUE ||
2122 experiment.type == Experiment::ENABLE_DISABLE_VALUE);
2123 base::ListValue* result = new base::ListValue;
2124 for (int i = 0; i < experiment.num_choices; ++i) {
2125 base::DictionaryValue* value = new base::DictionaryValue;
2126 const std::string name = experiment.NameForChoice(i);
2127 value->SetString("internal_name", name);
2128 value->SetString("description", experiment.DescriptionForChoice(i));
2129 value->SetBoolean("selected", enabled_experiments.count(name) > 0);
2130 result->Append(value);
2131 }
2132 return result;
2133 }
2134
2135 } // namespace
2136
NameForChoice(int index) const2137 std::string Experiment::NameForChoice(int index) const {
2138 DCHECK(type == Experiment::MULTI_VALUE ||
2139 type == Experiment::ENABLE_DISABLE_VALUE);
2140 DCHECK_LT(index, num_choices);
2141 return std::string(internal_name) + testing::kMultiSeparator +
2142 base::IntToString(index);
2143 }
2144
DescriptionForChoice(int index) const2145 base::string16 Experiment::DescriptionForChoice(int index) const {
2146 DCHECK(type == Experiment::MULTI_VALUE ||
2147 type == Experiment::ENABLE_DISABLE_VALUE);
2148 DCHECK_LT(index, num_choices);
2149 int description_id;
2150 if (type == Experiment::ENABLE_DISABLE_VALUE) {
2151 const int kEnableDisableDescriptionIds[] = {
2152 IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT,
2153 IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
2154 IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
2155 };
2156 description_id = kEnableDisableDescriptionIds[index];
2157 } else {
2158 description_id = choices[index].description_id;
2159 }
2160 return l10n_util::GetStringUTF16(description_id);
2161 }
2162
ConvertFlagsToSwitches(FlagsStorage * flags_storage,CommandLine * command_line,SentinelsMode sentinels)2163 void ConvertFlagsToSwitches(FlagsStorage* flags_storage,
2164 CommandLine* command_line,
2165 SentinelsMode sentinels) {
2166 FlagsState::GetInstance()->ConvertFlagsToSwitches(flags_storage,
2167 command_line,
2168 sentinels);
2169 }
2170
AreSwitchesIdenticalToCurrentCommandLine(const CommandLine & new_cmdline,const CommandLine & active_cmdline)2171 bool AreSwitchesIdenticalToCurrentCommandLine(
2172 const CommandLine& new_cmdline, const CommandLine& active_cmdline) {
2173 std::set<CommandLine::StringType> new_flags =
2174 ExtractFlagsFromCommandLine(new_cmdline);
2175 std::set<CommandLine::StringType> active_flags =
2176 ExtractFlagsFromCommandLine(active_cmdline);
2177
2178 // Needed because std::equal doesn't check if the 2nd set is empty.
2179 if (new_flags.size() != active_flags.size())
2180 return false;
2181
2182 return std::equal(new_flags.begin(), new_flags.end(), active_flags.begin());
2183 }
2184
GetFlagsExperimentsData(FlagsStorage * flags_storage,FlagAccess access,base::ListValue * supported_experiments,base::ListValue * unsupported_experiments)2185 void GetFlagsExperimentsData(FlagsStorage* flags_storage,
2186 FlagAccess access,
2187 base::ListValue* supported_experiments,
2188 base::ListValue* unsupported_experiments) {
2189 std::set<std::string> enabled_experiments;
2190 GetSanitizedEnabledFlags(flags_storage, &enabled_experiments);
2191
2192 int current_platform = GetCurrentPlatform();
2193
2194 for (size_t i = 0; i < num_experiments; ++i) {
2195 const Experiment& experiment = experiments[i];
2196 if (SkipConditionalExperiment(experiment))
2197 continue;
2198
2199 base::DictionaryValue* data = new base::DictionaryValue();
2200 data->SetString("internal_name", experiment.internal_name);
2201 data->SetString("name",
2202 l10n_util::GetStringUTF16(experiment.visible_name_id));
2203 data->SetString("description",
2204 l10n_util::GetStringUTF16(
2205 experiment.visible_description_id));
2206
2207 base::ListValue* supported_platforms = new base::ListValue();
2208 AddOsStrings(experiment.supported_platforms, supported_platforms);
2209 data->Set("supported_platforms", supported_platforms);
2210
2211 switch (experiment.type) {
2212 case Experiment::SINGLE_VALUE:
2213 data->SetBoolean(
2214 "enabled",
2215 enabled_experiments.count(experiment.internal_name) > 0);
2216 break;
2217 case Experiment::MULTI_VALUE:
2218 case Experiment::ENABLE_DISABLE_VALUE:
2219 data->Set("choices", CreateChoiceData(experiment, enabled_experiments));
2220 break;
2221 default:
2222 NOTREACHED();
2223 }
2224
2225 bool supported = (experiment.supported_platforms & current_platform) != 0;
2226 #if defined(OS_CHROMEOS)
2227 if (access == kOwnerAccessToFlags &&
2228 (experiment.supported_platforms & kOsCrOSOwnerOnly) != 0) {
2229 supported = true;
2230 }
2231 #endif
2232 if (supported)
2233 supported_experiments->Append(data);
2234 else
2235 unsupported_experiments->Append(data);
2236 }
2237 }
2238
IsRestartNeededToCommitChanges()2239 bool IsRestartNeededToCommitChanges() {
2240 return FlagsState::GetInstance()->IsRestartNeededToCommitChanges();
2241 }
2242
SetExperimentEnabled(FlagsStorage * flags_storage,const std::string & internal_name,bool enable)2243 void SetExperimentEnabled(FlagsStorage* flags_storage,
2244 const std::string& internal_name,
2245 bool enable) {
2246 FlagsState::GetInstance()->SetExperimentEnabled(flags_storage,
2247 internal_name, enable);
2248 }
2249
RemoveFlagsSwitches(std::map<std::string,CommandLine::StringType> * switch_list)2250 void RemoveFlagsSwitches(
2251 std::map<std::string, CommandLine::StringType>* switch_list) {
2252 FlagsState::GetInstance()->RemoveFlagsSwitches(switch_list);
2253 }
2254
ResetAllFlags(FlagsStorage * flags_storage)2255 void ResetAllFlags(FlagsStorage* flags_storage) {
2256 FlagsState::GetInstance()->ResetAllFlags(flags_storage);
2257 }
2258
GetCurrentPlatform()2259 int GetCurrentPlatform() {
2260 #if defined(OS_MACOSX)
2261 return kOsMac;
2262 #elif defined(OS_WIN)
2263 return kOsWin;
2264 #elif defined(OS_CHROMEOS) // Needs to be before the OS_LINUX check.
2265 return kOsCrOS;
2266 #elif defined(OS_LINUX) || defined(OS_OPENBSD)
2267 return kOsLinux;
2268 #elif defined(OS_ANDROID)
2269 return kOsAndroid;
2270 #else
2271 #error Unknown platform
2272 #endif
2273 }
2274
RecordUMAStatistics(FlagsStorage * flags_storage)2275 void RecordUMAStatistics(FlagsStorage* flags_storage) {
2276 std::set<std::string> flags = flags_storage->GetFlags();
2277 for (std::set<std::string>::iterator it = flags.begin(); it != flags.end();
2278 ++it) {
2279 std::string action("AboutFlags_");
2280 action += *it;
2281 content::RecordComputedAction(action);
2282 }
2283 // Since flag metrics are recorded every startup, add a tick so that the
2284 // stats can be made meaningful.
2285 if (flags.size())
2286 content::RecordAction(UserMetricsAction("AboutFlags_StartupTick"));
2287 content::RecordAction(UserMetricsAction("StartupTick"));
2288 }
2289
2290 //////////////////////////////////////////////////////////////////////////////
2291 // FlagsState implementation.
2292
2293 namespace {
2294
2295 typedef std::map<std::string, std::pair<std::string, std::string> >
2296 NameToSwitchAndValueMap;
2297
SetFlagToSwitchMapping(const std::string & key,const std::string & switch_name,const std::string & switch_value,NameToSwitchAndValueMap * name_to_switch_map)2298 void SetFlagToSwitchMapping(const std::string& key,
2299 const std::string& switch_name,
2300 const std::string& switch_value,
2301 NameToSwitchAndValueMap* name_to_switch_map) {
2302 DCHECK(name_to_switch_map->end() == name_to_switch_map->find(key));
2303 (*name_to_switch_map)[key] = std::make_pair(switch_name, switch_value);
2304 }
2305
ConvertFlagsToSwitches(FlagsStorage * flags_storage,CommandLine * command_line,SentinelsMode sentinels)2306 void FlagsState::ConvertFlagsToSwitches(FlagsStorage* flags_storage,
2307 CommandLine* command_line,
2308 SentinelsMode sentinels) {
2309 if (command_line->HasSwitch(switches::kNoExperiments))
2310 return;
2311
2312 std::set<std::string> enabled_experiments;
2313
2314 GetSanitizedEnabledFlagsForCurrentPlatform(flags_storage,
2315 &enabled_experiments);
2316
2317 NameToSwitchAndValueMap name_to_switch_map;
2318 for (size_t i = 0; i < num_experiments; ++i) {
2319 const Experiment& e = experiments[i];
2320 if (e.type == Experiment::SINGLE_VALUE) {
2321 SetFlagToSwitchMapping(e.internal_name, e.command_line_switch,
2322 e.command_line_value, &name_to_switch_map);
2323 } else if (e.type == Experiment::MULTI_VALUE) {
2324 for (int j = 0; j < e.num_choices; ++j) {
2325 SetFlagToSwitchMapping(e.NameForChoice(j),
2326 e.choices[j].command_line_switch,
2327 e.choices[j].command_line_value,
2328 &name_to_switch_map);
2329 }
2330 } else {
2331 DCHECK_EQ(e.type, Experiment::ENABLE_DISABLE_VALUE);
2332 SetFlagToSwitchMapping(e.NameForChoice(0), std::string(), std::string(),
2333 &name_to_switch_map);
2334 SetFlagToSwitchMapping(e.NameForChoice(1), e.command_line_switch,
2335 e.command_line_value, &name_to_switch_map);
2336 SetFlagToSwitchMapping(e.NameForChoice(2), e.disable_command_line_switch,
2337 e.disable_command_line_value, &name_to_switch_map);
2338 }
2339 }
2340
2341 if (sentinels == kAddSentinels) {
2342 command_line->AppendSwitch(switches::kFlagSwitchesBegin);
2343 flags_switches_.insert(
2344 std::pair<std::string, std::string>(switches::kFlagSwitchesBegin,
2345 std::string()));
2346 }
2347 for (std::set<std::string>::iterator it = enabled_experiments.begin();
2348 it != enabled_experiments.end();
2349 ++it) {
2350 const std::string& experiment_name = *it;
2351 NameToSwitchAndValueMap::const_iterator name_to_switch_it =
2352 name_to_switch_map.find(experiment_name);
2353 if (name_to_switch_it == name_to_switch_map.end()) {
2354 NOTREACHED();
2355 continue;
2356 }
2357
2358 const std::pair<std::string, std::string>&
2359 switch_and_value_pair = name_to_switch_it->second;
2360
2361 CHECK(!switch_and_value_pair.first.empty());
2362 command_line->AppendSwitchASCII(switch_and_value_pair.first,
2363 switch_and_value_pair.second);
2364 flags_switches_[switch_and_value_pair.first] = switch_and_value_pair.second;
2365 }
2366 if (sentinels == kAddSentinels) {
2367 command_line->AppendSwitch(switches::kFlagSwitchesEnd);
2368 flags_switches_.insert(
2369 std::pair<std::string, std::string>(switches::kFlagSwitchesEnd,
2370 std::string()));
2371 }
2372 }
2373
IsRestartNeededToCommitChanges()2374 bool FlagsState::IsRestartNeededToCommitChanges() {
2375 return needs_restart_;
2376 }
2377
SetExperimentEnabled(FlagsStorage * flags_storage,const std::string & internal_name,bool enable)2378 void FlagsState::SetExperimentEnabled(FlagsStorage* flags_storage,
2379 const std::string& internal_name,
2380 bool enable) {
2381 size_t at_index = internal_name.find(testing::kMultiSeparator);
2382 if (at_index != std::string::npos) {
2383 DCHECK(enable);
2384 // We're being asked to enable a multi-choice experiment. Disable the
2385 // currently selected choice.
2386 DCHECK_NE(at_index, 0u);
2387 const std::string experiment_name = internal_name.substr(0, at_index);
2388 SetExperimentEnabled(flags_storage, experiment_name, false);
2389
2390 // And enable the new choice, if it is not the default first choice.
2391 if (internal_name != experiment_name + "@0") {
2392 std::set<std::string> enabled_experiments;
2393 GetSanitizedEnabledFlags(flags_storage, &enabled_experiments);
2394 needs_restart_ |= enabled_experiments.insert(internal_name).second;
2395 flags_storage->SetFlags(enabled_experiments);
2396 }
2397 return;
2398 }
2399
2400 std::set<std::string> enabled_experiments;
2401 GetSanitizedEnabledFlags(flags_storage, &enabled_experiments);
2402
2403 const Experiment* e = NULL;
2404 for (size_t i = 0; i < num_experiments; ++i) {
2405 if (experiments[i].internal_name == internal_name) {
2406 e = experiments + i;
2407 break;
2408 }
2409 }
2410 DCHECK(e);
2411
2412 if (e->type == Experiment::SINGLE_VALUE) {
2413 if (enable)
2414 needs_restart_ |= enabled_experiments.insert(internal_name).second;
2415 else
2416 needs_restart_ |= (enabled_experiments.erase(internal_name) > 0);
2417 } else {
2418 if (enable) {
2419 // Enable the first choice.
2420 needs_restart_ |= enabled_experiments.insert(e->NameForChoice(0)).second;
2421 } else {
2422 // Find the currently enabled choice and disable it.
2423 for (int i = 0; i < e->num_choices; ++i) {
2424 std::string choice_name = e->NameForChoice(i);
2425 if (enabled_experiments.find(choice_name) !=
2426 enabled_experiments.end()) {
2427 needs_restart_ = true;
2428 enabled_experiments.erase(choice_name);
2429 // Continue on just in case there's a bug and more than one
2430 // experiment for this choice was enabled.
2431 }
2432 }
2433 }
2434 }
2435
2436 flags_storage->SetFlags(enabled_experiments);
2437 }
2438
RemoveFlagsSwitches(std::map<std::string,CommandLine::StringType> * switch_list)2439 void FlagsState::RemoveFlagsSwitches(
2440 std::map<std::string, CommandLine::StringType>* switch_list) {
2441 for (std::map<std::string, std::string>::const_iterator
2442 it = flags_switches_.begin(); it != flags_switches_.end(); ++it) {
2443 switch_list->erase(it->first);
2444 }
2445 }
2446
ResetAllFlags(FlagsStorage * flags_storage)2447 void FlagsState::ResetAllFlags(FlagsStorage* flags_storage) {
2448 needs_restart_ = true;
2449
2450 std::set<std::string> no_experiments;
2451 flags_storage->SetFlags(no_experiments);
2452 }
2453
reset()2454 void FlagsState::reset() {
2455 needs_restart_ = false;
2456 flags_switches_.clear();
2457 }
2458
2459 } // namespace
2460
2461 namespace testing {
2462
2463 // WARNING: '@' is also used in the html file. If you update this constant you
2464 // also need to update the html file.
2465 const char kMultiSeparator[] = "@";
2466
ClearState()2467 void ClearState() {
2468 FlagsState::GetInstance()->reset();
2469 }
2470
SetExperiments(const Experiment * e,size_t count)2471 void SetExperiments(const Experiment* e, size_t count) {
2472 if (!e) {
2473 experiments = kExperiments;
2474 num_experiments = arraysize(kExperiments);
2475 } else {
2476 experiments = e;
2477 num_experiments = count;
2478 }
2479 }
2480
GetExperiments(size_t * count)2481 const Experiment* GetExperiments(size_t* count) {
2482 *count = num_experiments;
2483 return experiments;
2484 }
2485
2486 } // namespace testing
2487
2488 } // namespace about_flags
2489