Let Chrome app handle Ash accelerators first if the app is launched as a window

ash/test/test_shell_delegate.h

 // 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.
 
 #ifndef ASH_TEST_TEST_SHELL_DELEGATE_H_
 #define ASH_TEST_TEST_SHELL_DELEGATE_H_
 #pragma once
 
 #include "ash/shell_delegate.h"
 #include "base/compiler_specific.h"
 
 namespace ash {
 namespace test {
 
 class TestShellDelegate : public ShellDelegate {
  public:
   TestShellDelegate();
   virtual ~TestShellDelegate();
 
   // Overridden from ShellDelegate:
   virtual bool IsUserLoggedIn() OVERRIDE;
   virtual void LockScreen() OVERRIDE;
   virtual void UnlockScreen() OVERRIDE;
   virtual bool IsScreenLocked() const OVERRIDE;
   virtual void Shutdown() OVERRIDE;
   virtual void Exit() OVERRIDE;
   virtual void NewWindow(bool incognito) OVERRIDE;
+  virtual bool IsBrowserWindow(const aura::Window* window) OVERRIDE;
   virtual void Search() OVERRIDE;
   virtual void OpenFileManager() OVERRIDE;
   virtual void OpenCrosh() OVERRIDE;
   virtual void OpenMobileSetup() OVERRIDE;
   virtual AppListViewDelegate* CreateAppListViewDelegate() OVERRIDE;
   virtual void StartPartialScreenshot(
       ScreenshotDelegate* screenshot_delegate) OVERRIDE;
   virtual LauncherDelegate* CreateLauncherDelegate(
       ash::LauncherModel* model) OVERRIDE;
   virtual SystemTrayDelegate* CreateSystemTrayDelegate(SystemTray* t) OVERRIDE;
   virtual UserWallpaperDelegate* CreateUserWallpaperDelegate() OVERRIDE;
 
  private:
   bool locked_;
 
   DISALLOW_COPY_AND_ASSIGN(TestShellDelegate);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_TEST_SHELL_DELEGATE_H_