Adds Ctrl-Shift-Q support inside AppList

ash/accelerators/accelerator_controller_unittest.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/accelerators/accelerator_controller.h"
 #include "ash/caps_lock_delegate.h"
 #include "ash/ime/event.h"
 #include "ash/screenshot_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
@@ skipping 301 matching lines @@
   }
 #if !defined(NDEBUG)
   // RotateScreen
   EXPECT_TRUE(GetController()->Process(
       ui::Accelerator(ui::VKEY_HOME, false, true, false)));
 #if !defined(OS_LINUX)
   // ToggleDesktopFullScreen (not implemented yet on Linux)
   EXPECT_TRUE(GetController()->Process(
       ui::Accelerator(ui::VKEY_F11, false, true, false)));
 #endif
+
+  // Exit
+  EXPECT_TRUE(GetController()->Process(
+      ui::Accelerator(ui::VKEY_Q, true, true ,false)));
 #endif
 }
 
 }  // namespace test
 }  // namespace ash