Fixed bug where mash chrome crashes accessing ash::Shell with context menus

chrome/browser/ui/views/chrome_views_delegate.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 "chrome/browser/ui/views/chrome_views_delegate.h"
 
 #include <memory>
 
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/keep_alive_types.h"
 #include "chrome/browser/lifetime/scoped_keep_alive.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/ash/ash_util.h"
 #include "chrome/browser/ui/browser_window_state.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/version_info/version_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/context_factory.h"
 #include "grit/chrome_unscaled_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/display/display.h"
@@ skipping 234 matching lines @@
 #if defined(USE_AURA)
   AutomationManagerAura::GetInstance()->HandleEvent(
       GetProfileForWindow(view->GetWidget()), view, event_type);
 #endif
 }
 
 views::ViewsDelegate::ProcessMenuAcceleratorResult
 ChromeViewsDelegate::ProcessAcceleratorWhileMenuShowing(
     const ui::Accelerator& accelerator) {
 #if defined(USE_ASH)
+  // Early return because mash chrome does not have access to ash::Shell
+  if (chrome::IsRunningInMash())
+    return views::ViewsDelegate::ProcessMenuAcceleratorResult::LEAVE_MENU_OPEN;
+
   ash::AcceleratorController* accelerator_controller =
       ash::Shell::GetInstance()->accelerator_controller();
 
   accelerator_controller->accelerator_history()->StoreCurrentAccelerator(
       accelerator);
   if (accelerator_controller->ShouldCloseMenuAndRepostAccelerator(
           accelerator)) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(ProcessAcceleratorNow, accelerator));
     return views::ViewsDelegate::ProcessMenuAcceleratorResult::CLOSE_MENU;
@@ skipping 216 matching lines @@
   return content::BrowserThread::GetBlockingPool();
 }
 
 #if !defined(USE_ASH)
 views::Widget::InitParams::WindowOpacity
 ChromeViewsDelegate::GetOpacityForInitParams(
     const views::Widget::InitParams& params) {
   return views::Widget::InitParams::OPAQUE_WINDOW;
 }
 #endif