Lazy initialization for PushMessagingEventRouter

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 <list>
 #include <map>
 #include <set>
@@ skipping 53 matching lines @@
 class BrowserEventRouter;
 class ComponentLoader;
 class ContentSettingsStore;
 class CrxInstaller;
 class Extension;
 class ExtensionActionStorageManager;
 class ExtensionSyncData;
 class ExtensionSystem;
 class ExtensionUpdater;
 class PendingExtensionManager;
-class PushMessagingEventRouter;
 class SettingsFrontend;
 }
 
 namespace syncer {
 class SyncErrorFactory;
 }
 
 // This is an interface class to encapsulate the dependencies that
 // various classes have on ExtensionService. This allows easy mocking.
 class ExtensionServiceInterface : public syncer::SyncableService {
@@ skipping 198 matching lines @@
   // TODO(yoz): remove InitEventRoutersAterImport.
   void InitEventRoutersAfterImport();
   void RegisterForImportFinished();
 
   // Complete some initialization after being notified that import has finished.
   void InitAfterImport();
 
   // Start up the extension event routers.
   void InitEventRouters();
 
-  // Called when the ProfileSyncService for the associated Profile is
-  // going to be destroyed.  This is guaranteed to be called exactly
-  // once before Shutdown() is called.
-  //
-  // TODO(akalin): Remove this once http://crbug.com/153827 is fixed.
-  void OnProfileSyncServiceShutdown();
-
   // Called when the associated Profile is going to be destroyed.
   void Shutdown();
 
   // Look up an extension by ID. Does not include terminated
   // extensions.
   virtual const extensions::Extension* GetExtensionById(
       const std::string& id, bool include_disabled) const OVERRIDE;
 
   enum IncludeFlag {
     INCLUDE_NONE        = 0,
@@ skipping 251 matching lines @@
   extensions::BrowserEventRouter* browser_event_router() {
     return browser_event_router_.get();
   }
 
 #if defined(OS_CHROMEOS)
   chromeos::ExtensionInputMethodEventRouter* input_method_event_router() {
     return input_method_event_router_.get();
   }
 #endif
 
-  extensions::PushMessagingEventRouter* push_messaging_event_router() {
-    return push_messaging_event_router_.get();
-  }
-
   // Notify the frontend that there was an error loading an extension.
   // This method is public because UnpackedInstaller and InstalledLoader
   // can post to here.
   // TODO(aa): Remove this. It doesn't do enough to be worth the dependency
   // of these classes on ExtensionService.
   void ReportExtensionLoadError(const FilePath& extension_path,
                                 const std::string& error,
                                 bool be_noisy);
 
   // ExtensionHost of background page calls this method right after its render
@@ skipping 377 matching lines @@
   bool event_routers_initialized_;
 
   // TODO(yoz): None of these should be owned by ExtensionService.
   // crbug.com/159265
   scoped_ptr<HistoryExtensionEventRouter> history_event_router_;
 
   scoped_ptr<extensions::BrowserEventRouter> browser_event_router_;
 
   scoped_ptr<BookmarkExtensionEventRouter> bookmark_event_router_;
 
-  scoped_ptr<extensions::PushMessagingEventRouter>
-      push_messaging_event_router_;
-
 #if defined(OS_CHROMEOS)
   scoped_ptr<chromeos::ExtensionInputMethodEventRouter>
       input_method_event_router_;
 #endif
 
   // A collection of external extension providers.  Each provider reads
   // a source of external extension information.  Examples include the
   // windows registry and external_extensions.json.
   extensions::ProviderCollection external_extension_providers_;
 
@@ skipping 37 matching lines @@
 #endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_