Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/metrics/desktop_task_switch_metric_recorder_unittest.cc

 // Copyright 2015 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/metrics/desktop_task_switch_metric_recorder.h"
 
 #include <memory>
 
+#include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
-#include "ash/wm_shell.h"
 #include "base/test/user_action_tester.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer_type.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/wm/public/activation_client.h"
 #include "ui/wm/public/window_types.h"
 
 using aura::client::ActivationChangeObserver;
 
@@ skipping 320 matching lines @@
       CreatePositionableWindowInShellWithBounds(gfx::Rect(0, 0, 10, 10));
 
   Shell::GetInstance()->activation_client()->ActivateWindow(
       positionable_window);
 
   EXPECT_EQ(0, GetActionCount());
 }
 
 }  // namespace
 }  // namespace ash