Renames ash/wm/common into ash/common/wm

ash/wm/common/wm_root_window_controller_observer.h

Index: ash/wm/common/wm_root_window_controller_observer.h
diff --git a/ash/wm/common/wm_root_window_controller_observer.h b/ash/wm/common/wm_root_window_controller_observer.h
deleted file mode 100644
index 8e9e916fa14f9cc6510e184a244161166ee7db2a..0000000000000000000000000000000000000000
--- a/ash/wm/common/wm_root_window_controller_observer.h
+++ /dev/null
@@ -1,28 +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_WM_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_
-#define ASH_WM_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_
-
-#include "ash/ash_export.h"
-
-namespace ash {
-namespace wm {
-
-class WmWindow;
-
-class ASH_EXPORT WmRootWindowControllerObserver {
- public:
-  virtual void OnWorkAreaChanged() {}
-  virtual void OnFullscreenStateChanged(bool is_fullscreen) {}
-  virtual void OnShelfAlignmentChanged() {}
-
- protected:
-  virtual ~WmRootWindowControllerObserver() {}
-};
-
-}  // namespace wm
-}  // namespace ash
-
-#endif  // ASH_WM_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_