wm: Update namespace and header define guards.

src/platform/window_manager/shadow.h

 // Copyright (c) 2009 The Chromium OS 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 __PLATFORM_WINDOW_MANAGER_SHADOW_H__
-#define __PLATFORM_WINDOW_MANAGER_SHADOW_H__
+#ifndef WINDOW_MANAGER_SHADOW_H_
+#define WINDOW_MANAGER_SHADOW_H_
 
 #include <gtest/gtest_prod.h>  // for FRIEND_TEST() macro
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "window_manager/clutter_interface.h"
 #include "window_manager/util.h"
 
-namespace chromeos {
+namespace window_manager {
 
 // This class displays a drop shadow that can be positioned under a window.
 //
 // This is a bit trickier than just scaling a single textured Clutter
 // actor.  We want shadows to have the same weight regardless of their
 // dimensions, so we arrange eight actors (corners and top/bottom/sides)
 // around the window, scaling the top/bottom/sides as needed.  A group
 // containing all of the shadow's actors is exposed for adding to
 // containers or restacking.
 class Shadow {
@@ skipping 69 matching lines @@
   scoped_ptr<ClutterInterface::Actor> left_actor_;
   scoped_ptr<ClutterInterface::Actor> right_actor_;
   scoped_ptr<ClutterInterface::Actor> tl_actor_;
   scoped_ptr<ClutterInterface::Actor> tr_actor_;
   scoped_ptr<ClutterInterface::Actor> bl_actor_;
   scoped_ptr<ClutterInterface::Actor> br_actor_;
 
   DISALLOW_COPY_AND_ASSIGN(Shadow);
 };
 
-}  // namespace chromeos
+}  // namespace window_manager
 
 #endif