Lazy initialization for ProcessesEventRouter.

chrome/browser/extensions/extension_system.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_SYSTEM_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 198 matching lines @@
     Profile* profile_;
 
     // The services that are shared between normal and incognito profiles.
 
     scoped_ptr<StateStore> state_store_;
     scoped_ptr<ShellWindowGeometryCache> shell_window_geometry_cache_;
     scoped_ptr<ExtensionPrefs> extension_prefs_;
     // LazyBackgroundTaskQueue is a dependency of
     // MessageService and EventRouter.
     scoped_ptr<LazyBackgroundTaskQueue> lazy_background_task_queue_;
+    scoped_ptr<EventRouter> event_router_;
     scoped_ptr<MessageService> message_service_;
-    scoped_ptr<EventRouter> extension_event_router_;
     scoped_ptr<NavigationObserver> navigation_observer_;
     scoped_refptr<UserScriptMaster> user_script_master_;
     // ExtensionService depends on ExtensionPrefs and StateStore.
     scoped_ptr<ExtensionService> extension_service_;
     scoped_ptr<ManagementPolicy> management_policy_;
     // extension_info_map_ needs to outlive extension_process_manager_.
     scoped_refptr<ExtensionInfoMap> extension_info_map_;
   };
 
   Profile* profile_;
@@ skipping 13 matching lines @@
   scoped_ptr<ApiResourceManager<
                UsbDeviceResource> > usb_device_resource_manager_;
   scoped_ptr<RulesRegistryService> rules_registry_service_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSystemImpl);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_