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

athena/content/app_activity.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.h"
 
 #include "athena/activity/public/activity_manager.h"
 #include "athena/content/app_activity_registry.h"
 #include "athena/content/content_proxy.h"
 #include "athena/content/public/app_registry.h"
@@ skipping 85 matching lines @@
   return !web_view_ ? NULL : web_view_->GetWidget()->GetNativeWindow();
 }
 
 void AppActivity::Init() {
   DCHECK(app_activity_registry_);
   Activity* app_proxy = app_activity_registry_->unloaded_activity_proxy();
   if (app_proxy) {
     // Note: At this time the |AppActivity| did not get registered to the
     // |ResourceManager| - so we can move it around if needed.
     WindowListProvider* window_list_provider =
-        WindowManager::GetInstance()->GetWindowListProvider();
+        WindowManager::Get()->GetWindowListProvider();
     window_list_provider->StackWindowFrontOf(app_proxy->GetWindow(),
                                              GetWindow());
     Activity::Delete(app_proxy);
     // With the removal the object, the proxy should be deleted.
     DCHECK(!app_activity_registry_->unloaded_activity_proxy());
   }
 }
 
 SkColor AppActivity::GetRepresentativeColor() const {
   // TODO(sad): Compute the color from the favicon.
@@ skipping 92 matching lines @@
 void AppActivity::HideContentProxy() {
   content_proxy_.reset();
 }
 
 void AppActivity::ShowContentProxy() {
   if (!content_proxy_.get() && web_view_)
     content_proxy_.reset(new ContentProxy(web_view_, this));
 }
 
 }  // namespace athena