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1 // Copyright 2013 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 #ifndef CHROME_BROWSER_SITE_DETAILS_H_
6 #define CHROME_BROWSER_SITE_DETAILS_H_
7 
8 #include "base/containers/hash_tables.h"
9 #include "content/public/browser/browser_context.h"
10 #include "content/public/browser/site_instance.h"
11 #include "content/public/browser/web_contents.h"
12 
13 // Maps an ID representing each BrowsingInstance to a set of site URLs.
14 typedef base::hash_map<int32, std::set<GURL> > BrowsingInstanceSiteMap;
15 
16 // Information about the sites and SiteInstances in each BrowsingInstance, for
17 // use in estimating the number of processes needed for various process models.
18 struct SiteData {
19   SiteData();
20   ~SiteData();
21 
22   std::set<GURL> sites;
23   std::set<GURL> https_sites;
24   std::vector<content::SiteInstance*> instances;
25   BrowsingInstanceSiteMap instance_site_map;
26   BrowsingInstanceSiteMap instance_https_site_map;
27 };
28 
29 // Maps a BrowserContext to information about the SiteInstances it contains.
30 typedef base::hash_map<content::BrowserContext*, SiteData>
31     BrowserContextSiteDataMap;
32 
33 class SiteDetails {
34  public:
35   // Collect information about all committed sites in the given WebContents
36   // on the UI thread.
37   static void CollectSiteInfo(content::WebContents* contents,
38                               SiteData* site_data);
39 
40   // Updates the global histograms for tracking memory usage.
41   static void UpdateHistograms(const BrowserContextSiteDataMap& site_data_map,
42                                int all_renderer_process_count,
43                                int non_renderer_process_count);
44 
45  private:
46   // Never needs to be constructed.
47   SiteDetails();
48   ~SiteDetails();
49 
50   DISALLOW_COPY_AND_ASSIGN(SiteDetails);
51 };
52 
53 #endif  // CHROME_BROWSER_SITE_DETAILS_H_
54