Lazy initialization for ProcessesEventRouter.

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 862 matching lines @@
   // Keeps track of app notifications.
   scoped_refptr<extensions::AppNotificationManager> app_notification_manager_;
 
   // Keeps track of favicon-sized omnibox icons for extensions.
   ExtensionIconManager omnibox_icon_manager_;
   ExtensionIconManager omnibox_popup_icon_manager_;
 
   // Flag to make sure event routers are only initialized once.
   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<extensions::WindowEventRouter> window_event_router_;
 
   scoped_ptr<extensions::PreferenceEventRouter> preference_event_router_;
 
   scoped_ptr<BookmarkExtensionEventRouter> bookmark_event_router_;
 
@@ skipping 58 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_