cleanup: Use EventRouter instead of ExtensionSystem::Get->event_router()

chrome/browser/chromeos/login/wallpaper_manager.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
 
 #include <numeric>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 966 matching lines @@
   observers_.AddObserver(observer);
 }
 
 void WallpaperManager::RemoveObserver(WallpaperManager::Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void WallpaperManager::EnableSurpriseMe() {
   Profile* profile = ProfileManager::GetActiveUserProfile();
   DCHECK(profile);
-  DCHECK(extensions::ExtensionSystem::Get(profile)->event_router());
+  DCHECK(extensions::EventRouter::Get(profile));
   scoped_ptr<extensions::Event> event(
       new extensions::Event(
     extensions::api::wallpaper_private::OnRequestEnableSurpriseMe::kEventName,
     extensions::api::wallpaper_private::OnRequestEnableSurpriseMe::Create()));
 
-  extensions::ExtensionSystem::Get(profile)->event_router()
-      ->DispatchEventToExtension(extension_misc::kWallpaperManagerId,
-                                 event.Pass());
+  extensions::EventRouter::Get(profile)->DispatchEventToExtension(
+      extension_misc::kWallpaperManagerId, event.Pass());
 }
 
 void WallpaperManager::NotifyAnimationFinished() {
   FOR_EACH_OBSERVER(
       Observer, observers_, OnWallpaperAnimationFinished(last_selected_user_));
 }
 
 // WallpaperManager, private: --------------------------------------------------
 
 bool WallpaperManager::GetWallpaperFromCache(const std::string& user_id,
@@ skipping 588 matching lines @@
                  base::Passed(on_finish.Pass())));
 }
 
 const char* WallpaperManager::GetCustomWallpaperSubdirForCurrentResolution() {
   WallpaperResolution resolution = GetAppropriateResolution();
   return resolution == WALLPAPER_RESOLUTION_SMALL ? kSmallWallpaperSubDir
                                                   : kLargeWallpaperSubDir;
 }
 
 }  // namespace chromeos