Fixes issue with accelerators when a menu is open

ash/shell.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/shell.h"
 
 #include <algorithm>
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_filter.h"
+#include "ash/accelerators/nested_dispatcher_controller.h"
 #include "ash/app_list/app_list.h"
 #include "ash/ash_switches.h"
 #include "ash/drag_drop/drag_drop_controller.h"
 #include "ash/ime/input_method_event_filter.h"
 #include "ash/launcher/launcher.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_factory.h"
 #include "ash/shell_window_ids.h"
 #include "ash/tooltips/tooltip_controller.h"
 #include "ash/wm/activation_controller.h"
@@ skipping 143 matching lines @@
 }  // namespace
 
 // static
 Shell* Shell::instance_ = NULL;
 
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, public:
 
 Shell::Shell(ShellDelegate* delegate)
     : ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)),
+      nested_dispatcher_controller_(new NestedDispatcherController),
       accelerator_controller_(new AcceleratorController),
       delegate_(delegate),
       window_mode_(NORMAL_MODE),
       root_window_layout_(NULL),
       status_widget_(NULL) {
   aura::RootWindow::GetInstance()->SetEventFilter(
       new internal::RootWindowEventFilter);
 }
 
 Shell::~Shell() {
@@ skipping 327 matching lines @@
 
   // Create the desktop background image.
   root_window_layout_->SetBackgroundWidget(internal::CreateDesktopBackground());
 }
 
 void Shell::ResetLayoutManager(int container_id) {
   GetContainer(container_id)->SetLayoutManager(NULL);
 }
 
 }  // namespace ash