Moves RootWindowControllerCommon and LayoutManager to common

ash/magnifier/partial_magnification_controller.cc

 // 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.
 
 #include "ash/magnifier/partial_magnification_controller.h"
 
+#include "ash/common/shell_window_ids.h"
 #include "ash/shell.h"
-#include "ash/shell_window_ids.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_property.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/compositor/layer.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/wm/core/compound_event_filter.h"
 
@@ skipping 183 matching lines @@
        iter != root_windows.end(); ++iter) {
     aura::Window* root_window = *iter;
     if (root_window->ContainsPointInRoot(
             root_window->GetHost()->dispatcher()->GetLastMouseLocationInRoot()))
       return root_window;
   }
   return NULL;
 }
 
 }  // namespace ash