redesign and reimplement proxy config service and tracker, revise proxy ui on cros

chrome/browser/profiles/off_the_record_profile_impl.h

Index: chrome/browser/profiles/off_the_record_profile_impl.h
===================================================================
--- chrome/browser/profiles/off_the_record_profile_impl.h	(revision 107101)
+++ chrome/browser/profiles/off_the_record_profile_impl.h	(working copy)
@@ -124,7 +124,8 @@
   virtual void OnLogin() OVERRIDE;
 #endif  // defined(OS_CHROMEOS)
 
-  virtual PrefProxyConfigTracker* GetProxyConfigTracker() OVERRIDE;
+  virtual PrefProxyConfigTrackerType* GetProxyConfigTracker() OVERRIDE;
+
   virtual chrome_browser_net::Predictor* GetNetworkPredictor() OVERRIDE;
   virtual void ClearNetworkingHistorySince(base::Time time) OVERRIDE;
 
@@ -182,7 +183,7 @@
   // The file_system context for this profile.
   scoped_refptr<fileapi::FileSystemContext> file_system_context_;
 
-  scoped_refptr<PrefProxyConfigTracker> pref_proxy_config_tracker_;
+  scoped_ptr<PrefProxyConfigTrackerType> pref_proxy_config_tracker_;
 
   scoped_ptr<ChromeURLDataManager> chrome_url_data_manager_;