Moves RootWindowControllerCommon and LayoutManager to common

ash/common/root_window_controller_common.h

 // 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_ROOT_WINDOW_CONTROLLER_COMMON_H_
-#define ASH_ROOT_WINDOW_CONTROLLER_COMMON_H_
+#ifndef ASH_COMMON_ROOT_WINDOW_CONTROLLER_COMMON_H_
+#define ASH_COMMON_ROOT_WINDOW_CONTROLLER_COMMON_H_
 
 #include "base/macros.h"
 
 namespace ash {
 namespace wm {
 class RootWindowLayoutManager;
 class WmWindow;
 }
 
 // This will eventually become what is RootWindowController. During the
@@ skipping 17 matching lines @@
  private:
   wm::WmWindow* root_;
 
   wm::RootWindowLayoutManager* root_window_layout_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindowControllerCommon);
 };
 
 }  // namespace ash
 
-#endif  // ASH_ROOT_WINDOW_CONTROLLER_COMMON_H_
+#endif  // ASH_COMMON_ROOT_WINDOW_CONTROLLER_COMMON_H_