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

athena/content/app_activity_proxy.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_proxy.h"
 
 #include "athena/content/app_activity.h"
 #include "athena/content/app_activity_registry.h"
 #include "athena/wm/public/window_list_provider.h"
 #include "athena/wm/public/window_manager.h"
@@ skipping 44 matching lines @@
 
 aura::Window* AppActivityProxy::GetWindow() {
   return view_->GetWidget()->GetNativeWindow();
 }
 
 void AppActivityProxy::Init() {
   DCHECK(replaced_activity_);
   // Get the content proxy to present the content.
   content_proxy_ = replaced_activity_->GetContentProxy(GetWindow());
   WindowListProvider* window_list_provider =
-      WindowManager::GetInstance()->GetWindowListProvider();
+      WindowManager::Get()->GetWindowListProvider();
   window_list_provider->StackWindowBehindTo(GetWindow(),
                                             replaced_activity_->GetWindow());
   // Creating this object was moving the activation to this window which should
   // not be the active window. As such we re-activate the top activity window.
   // TODO(skuhne): This should possibly move to the WindowListProvider.
   wm::ActivateWindow(window_list_provider->GetWindowList().back());
   // After the Init() function returns, the passed |replaced_activity_| might
   // get destroyed. Since we do not need it anymore we reset it.
   replaced_activity_ = NULL;
 }
@@ skipping 26 matching lines @@
   return content_proxy_->GetContentImage();
 }
 
 void AppActivityProxy::PrepareContentsForOverview() {
 }
 
 void AppActivityProxy::ResetContentsView() {
 }
 
 }  // namespace athena