Shuffles and renames ash/common/wm classes

ash/common/wm/wm_overview_mode_observer.h

Index: ash/common/wm/wm_overview_mode_observer.h
diff --git a/ash/common/wm/wm_overview_mode_observer.h b/ash/common/wm/wm_overview_mode_observer.h
deleted file mode 100644
index b7ae9c4095385ca78eed5bf5461d21365b534eb2..0000000000000000000000000000000000000000
--- a/ash/common/wm/wm_overview_mode_observer.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2016 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_COMMON_WM_WM_OVERVIEW_MODE_OBSERVER_H_
-#define ASH_COMMON_WM_WM_OVERVIEW_MODE_OBSERVER_H_
-
-#include "ash/ash_export.h"
-
-namespace ash {
-namespace wm {
-
-class WmWindow;
-
-class ASH_EXPORT WmOverviewModeObserver {
- public:
-  virtual void OnOverviewModeEnded() {}
-
- protected:
-  virtual ~WmOverviewModeObserver() {}
-};
-
-}  // namespace wm
-}  // namespace ash
-
-#endif  // ASH_COMMON_WM_WM_OVERVIEW_MODE_OBSERVER_H_