[Athena, Cleanup] rename WidnowManager::GetInstance -> ::Get

athena/content/app_activity_registry.cc

 // Copyright 2014 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 "athena/content/app_activity_registry.h"
 
 #include "athena/activity/public/activity_manager.h"
 #include "athena/content/app_activity.h"
 #include "athena/content/app_activity_proxy.h"
 #include "athena/content/public/app_registry.h"
@@ skipping 101 matching lines @@
 void AppActivityRegistry::DelayedUnload() {
   if (!ExtensionsDelegate::Get(browser_context_)->UnloadApp(app_id_)) {
     while(!activity_list_.empty())
       Activity::Delete(activity_list_.back());
   }
 }
 
 AppActivity* AppActivityRegistry::GetMruActivity() {
   DCHECK(activity_list_.size());
   WindowListProvider* window_list_provider =
-      WindowManager::GetInstance()->GetWindowListProvider();
+      WindowManager::Get()->GetWindowListProvider();
   const aura::Window::Windows& children =
       window_list_provider->GetWindowList();
   // Find the first window in the container which is part of the application.
   for (aura::Window::Windows::const_iterator child_iterator = children.begin();
       child_iterator != children.end(); ++child_iterator) {
     for (std::vector<AppActivity*>::iterator app_iterator =
              activity_list_.begin();
          app_iterator != activity_list_.end(); ++app_iterator) {
       if (*child_iterator == (*app_iterator)->GetWindow())
         return *app_iterator;
     }
   }
   NOTREACHED() << "The application does not get tracked by the mru list";
   return NULL;
 }
 
 }  // namespace athena