wm: Update namespace and header define guards.

src/platform/window_manager/wm_ipc.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_WM_IPC_H__
-#define __PLATFORM_WINDOW_MANAGER_WM_IPC_H__
+#ifndef WINDOW_MANAGER_WM_IPC_H_
+#define WINDOW_MANAGER_WM_IPC_H_
 
 #include <gdk/gdk.h>  // for GdkEventClient
 extern "C" {
 #include <X11/Xlib.h>
 }
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "chromeos/obsolete_logging.h"
 
 typedef ::Atom XAtom;
 typedef ::Window XWindow;
 
-namespace chromeos {
+namespace window_manager {
 
 class AtomCache;    // from atom_cache.h
 class XConnection;  // from x_connection.h
 
 // This class simplifies window-manager-to-client-app communication.  It
 // consists primarily of utility methods to set and read properties on
 // client windows and to pass messages back and forth between the WM and
 // apps.
 class WmIpc {
  public:
@@ skipping 197 matching lines @@
  private:
   XConnection* xconn_;     // not owned
   AtomCache* atom_cache_;  // not owned
 
   // Window used for sending messages to the window manager.
   XWindow wm_window_;
 
   DISALLOW_COPY_AND_ASSIGN(WmIpc);
 };
 
-}  // namespace chromeos
+}  // namespace window_manager
 
 #endif