Extension syncing: Introduce a NeedsSync pref

chrome/browser/extensions/extension_service.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 387 matching lines @@
     return &delayed_installs_;
   }
 
   bool show_extensions_prompts() const { return show_extensions_prompts_; }
   void set_show_extensions_prompts(bool show_extensions_prompts) {
     show_extensions_prompts_ = show_extensions_prompts;
   }
 
   Profile* profile() { return profile_; }
 
-  void set_extension_sync_service(
-      ExtensionSyncService* extension_sync_service) {
-    extension_sync_service_ = extension_sync_service;
-  }
-
   // Note that this may return NULL if autoupdate is not turned on.
   extensions::ExtensionUpdater* updater() { return updater_.get(); }
 
   extensions::ComponentLoader* component_loader() {
     return component_loader_.get();
   }
 
   bool browser_terminating() const { return browser_terminating_; }
 
   extensions::SharedModuleService* shared_module_service() {
@@ skipping 189 matching lines @@
 
   // The ExtensionSystem for the profile above.
   extensions::ExtensionSystem* system_;
 
   // Preferences for the owning profile.
   extensions::ExtensionPrefs* extension_prefs_;
 
   // Blacklist for the owning profile.
   extensions::Blacklist* blacklist_;
 
-  // The ExtensionSyncService that is used by this ExtensionService.
-  ExtensionSyncService* extension_sync_service_;
-
   // Sets of enabled/disabled/terminated/blacklisted extensions. Not owned.
   extensions::ExtensionRegistry* registry_;
 
   // Set of greylisted extensions. These extensions are disabled if they are
   // already installed in Chromium at the time when they are added to
   // the greylist. Unlike blacklisted extensions, greylisted ones are visible
   // to the user and if user re-enables such an extension, they remain enabled.
   //
   // These extensions should appear in registry_.
   extensions::ExtensionSet greylist_;
@@ skipping 129 matching lines @@
                            GreylistUnknownDontChange);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            ManagementPolicyProhibitsEnableOnInstalled);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            BlockAndUnblockBlacklistedExtension);
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_