Move AcceleratorController from WmShell to Shell

ash/common/wm_shell.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/common/wm_shell.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/cast_config_controller.h"
@@ skipping 248 matching lines @@
 }
 
 void WmShell::CreateMruWindowTracker() {
   mru_window_tracker_.reset(new MruWindowTracker);
 }
 
 void WmShell::DeleteMruWindowTracker() {
   mru_window_tracker_.reset();
 }
 
-void WmShell::SetAcceleratorController(
-    std::unique_ptr<AcceleratorController> accelerator_controller) {
-  accelerator_controller_ = std::move(accelerator_controller);
-}
-
 void WmShell::SessionStateChanged(session_manager::SessionState state) {
   // Create the shelf when a session becomes active. It's safe to do this
   // multiple times (e.g. initial login vs. multiprofile add session).
   if (state == session_manager::SessionState::ACTIVE)
     CreateShelfView();
 
   // Only trigger an update in mash because with classic ash chrome calls
   // UpdateAfterLoginStatusChange() directly.
   if (IsRunningInMash()) {
     // TODO(jamescook): Should this call Shell::OnLoginStatusChanged() too?
     UpdateAfterLoginStatusChange(session_controller_->GetLoginStatus());
   }
 }
 
 }  // namespace ash