Moves handful of files to ash/wm/common

ash/wm/panels/panel_layout_manager.h

 // Copyright (c) 2012 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_PANELS_PANEL_LAYOUT_MANAGER_H_
 #define ASH_WM_PANELS_PANEL_LAYOUT_MANAGER_H_
 
 #include <list>
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/shelf/shelf_icon_observer.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
 #include "ash/shell_observer.h"
+#include "ash/wm/common/window_state_observer.h"
 #include "ash/wm/common/wm_activation_observer.h"
 #include "ash/wm/common/wm_display_observer.h"
 #include "ash/wm/common/wm_layout_manager.h"
 #include "ash/wm/common/wm_overview_mode_observer.h"
 #include "ash/wm/common/wm_root_window_controller_observer.h"
 #include "ash/wm/common/wm_window_observer.h"
 #include "ash/wm/common/wm_window_tracker.h"
-#include "ash/wm/window_state_observer.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/keyboard/keyboard_controller.h"
 #include "ui/keyboard/keyboard_controller_observer.h"
 
 namespace aura {
 class Window;
 }
 
@@ skipping 178 matching lines @@
   // are currently focused.
   wm::WmWindow* last_active_panel_;
   base::WeakPtrFactory<PanelLayoutManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelLayoutManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_PANELS_PANEL_LAYOUT_MANAGER_H_