mash: Move ash_switches.* to ash/common; cleanup DEPS.

chrome/test/base/view_event_test_platform_part_chromeos.cc

 // Copyright 2014 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/test/base/view_event_test_platform_part.h"
 
 #include <memory>
 
-#include "ash/ash_switches.h"
+#include "ash/common/ash_switches.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/shell.h"
 #include "ash/shell_init_params.h"
 #include "ash/test/ash_test_helper.h"
 #include "ash/test/test_session_state_delegate.h"
 #include "ash/test/test_shell_delegate.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ skipping 68 matching lines @@
   message_center::MessageCenter::Shutdown();
 }
 
 }  // namespace
 
 // static
 ViewEventTestPlatformPart* ViewEventTestPlatformPart::Create(
     ui::ContextFactory* context_factory) {
   return new ViewEventTestPlatformPartChromeOS(context_factory);
 }