Moves AcceleratorController from Shell to WmShell

ash/accelerators/focus_manager_factory.cc

 // 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.
 
 #include "ash/accelerators/focus_manager_factory.h"
 
 #include "ash/common/accelerators/accelerator_controller.h"
-#include "ash/shell.h"
+#include "ash/common/wm_shell.h"
 #include "ui/views/focus/focus_manager.h"
 
 namespace ash {
 
 AshFocusManagerFactory::AshFocusManagerFactory() {}
 AshFocusManagerFactory::~AshFocusManagerFactory() {}
 
 views::FocusManager* AshFocusManagerFactory::CreateFocusManager(
     views::Widget* widget,
     bool desktop_widget) {
   return new views::FocusManager(widget, desktop_widget ? NULL : new Delegate);
 }
 
 bool AshFocusManagerFactory::Delegate::ProcessAccelerator(
     const ui::Accelerator& accelerator) {
-  AcceleratorController* controller =
-      Shell::GetInstance()->accelerator_controller();
+  AcceleratorController* controller = WmShell::Get()->accelerator_controller();
   if (controller)
     return controller->Process(accelerator);
   return false;
 }
 
 }  // namespace ash