wm: Update namespace and header define guards.

src/platform/window_manager/panel.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_H__
-#define __PLATFORM_WINDOW_MANAGER_PANEL_H__
+#ifndef WINDOW_MANAGER_PANEL_H_
+#define WINDOW_MANAGER_PANEL_H_
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 
 #include <vector>
 
 #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/motion_event_coalescer.h"
 #include "window_manager/stacking_manager.h"
 #include "window_manager/window.h"  // for Window::Gravity
 
 typedef ::Window XWindow;
 
-namespace chromeos {
+namespace window_manager {
 
 class PanelBar;
 class WindowManager;
 
 // A single panel.  Each panel consists of both a panel window (the panel's
 // contents) and a titlebar window (a small window drawn in the bar when
 // the panel is collapsed or at the top of the panel when it's expanded).
 // 'initial_right' is the initial position of the right edge of the panel.
 class Panel {
  public:
@@ skipping 130 matching lines @@
   int drag_start_x_;
   int drag_start_y_;
   int drag_orig_width_;
   int drag_orig_height_;
   int drag_last_width_;
   int drag_last_height_;
 
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };
 
-}  // namespace chromeos
+}  // namespace window_manager
 
 #endif