Moves AcceleratorController from Shell to WmShell

ash/mus/bridge/wm_shell_mus.cc

 // Copyright 2016 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/mus/bridge/wm_shell_mus.h"
 
 #include <utility>
 
 #include "ash/common/display/display_info.h"
 #include "ash/common/keyboard/keyboard_ui.h"
@@ skipping 86 matching lines @@
 }  // namespace
 
 WmShellMus::WmShellMus(std::unique_ptr<ShellDelegate> shell_delegate,
                        ::ui::WindowTreeClient* client)
     : WmShell(std::move(shell_delegate)),
       client_(client),
       session_state_delegate_(new SessionStateDelegateStub) {
   client_->AddObserver(this);
   WmShell::Set(this);
 
+  SetAcceleratorController(base::MakeUnique<AcceleratorController>());
+
   CreateMaximizeModeController();
 
   CreateMruWindowTracker();
 
   SetSystemTrayDelegate(base::WrapUnique(new DefaultSystemTrayDelegate));
 
   // TODO(jamescook): Port ash::sysui::KeyboardUIMus and use it here.
   SetKeyboardUI(KeyboardUI::Create());
 }
 
@@ skipping 232 matching lines @@
                     OnWindowActivated(gained_active, lost_active));
 }
 
 void WmShellMus::OnDidDestroyClient(::ui::WindowTreeClient* client) {
   DCHECK_EQ(client, client_);
   RemoveClientObserver();
 }
 
 }  // namespace mus
 }  // namespace ash