wm: Update namespace and header define guards.

src/platform/window_manager/panel_bar.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_PANEL_BAR_H__
-#define __PLATFORM_WINDOW_MANAGER_PANEL_BAR_H__
+#ifndef WINDOW_MANAGER_PANEL_BAR_H_
+#define WINDOW_MANAGER_PANEL_BAR_H_
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 #include <deque>
 #include <map>
 #include <tr1/memory>
 
 #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/event_consumer.h"
 #include "window_manager/motion_event_coalescer.h"
 #include "window_manager/wm_ipc.h"
 
 typedef ::Window XWindow;
 
-namespace chromeos {
+namespace window_manager {
 
 class Panel;
 class Shadow;
 class Window;
 class WindowManager;
 
 // The panel bar positions and controls Chrome panel windows.
 class PanelBar : public EventConsumer {
  public:
   PanelBar(WindowManager* wm, int x, int y, int width, int height);
@@ skipping 209 matching lines @@
 
   // Is the panel bar visible?
   bool is_visible_;
 
   // Have we already seen a MapRequest event?
   bool saw_map_request_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelBar);
 };
 
-}  // namespace chromeos
+}  // namespace window_manager
 
 #endif