1 // Copyright (c) 2011 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_NET_PREF_PROXY_CONFIG_TRACKER_H_ 6 #define CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/scoped_ptr.h" 10 11 namespace net { 12 class ProxyConfigService; 13 } 14 15 // Interface for a class that tracks proxy preferences. The purpose of the 16 // concrete class is to track changes in the Preferences, to translates the 17 // preferences to net::ProxyConfig and to push the result over to a 18 // net::ProxyConfigService onto the IO thread. 19 class PrefProxyConfigTracker { 20 public: 21 PrefProxyConfigTracker(); 22 virtual ~PrefProxyConfigTracker(); 23 24 // Creates a net::ProxyConfigService and keeps a pointer to it. After this 25 // call, this tracker forwards any changes of proxy preferences to the created 26 // ProxyConfigService. The returned ProxyConfigService must not be deleted 27 // before DetachFromPrefService was called. Takes ownership of the passed 28 // |base_service|, which can be NULL. This |base_service| provides the proxy 29 // settings of the OS (except of ChromeOS). This must be called on the 30 // UI thread. 31 virtual scoped_ptr<net::ProxyConfigService> CreateTrackingProxyConfigService( 32 scoped_ptr<net::ProxyConfigService> base_service) = 0; 33 34 // Releases the PrefService passed upon construction and the |base_service| 35 // passed to CreateTrackingProxyConfigService. This must be called on the UI 36 // thread. 37 virtual void DetachFromPrefService() = 0; 38 39 private: 40 DISALLOW_COPY_AND_ASSIGN(PrefProxyConfigTracker); 41 }; 42 43 #endif // CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_ 44