wm: Update namespace and header define guards.

src/platform/window_manager/window.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_WINDOW_H__
-#define __PLATFORM_WINDOW_MANAGER_WINDOW_H__
+#ifndef WINDOW_MANAGER_WINDOW_H_
+#define WINDOW_MANAGER_WINDOW_H_
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 #include <gtest/gtest_prod.h>  // for FRIEND_TEST() macro
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "chromeos/obsolete_logging.h"
 #include "window_manager/atom_cache.h"  // for Atom enum
 #include "window_manager/clutter_interface.h"
 #include "window_manager/wm_ipc.h"
 
 typedef ::Window XWindow;
 
-namespace chromeos {
+namespace window_manager {
 
 class Shadow;
 template<class T> class Stacker;  // from util.h
 class WindowManager;
 
 // A client window.
 //
 // Because we use Xcomposite, there are (at least) two locations for a
 // given window that we need to keep track of:
 //
@@ skipping 305 matching lines @@
   bool wm_state_maximized_vert_;
   bool wm_state_modal_;
 
   // Chrome window state, as exposed in the window's _CHROME_STATE
   // property.
   std::set<XAtom> chrome_state_xatoms_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
-}  // namespace chromeos
+}  // namespace window_manager
 
 #endif