wm: Update namespace and header define guards.

src/platform/window_manager/x_connection.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_X_CONNECTION_H__
-#define __PLATFORM_WINDOW_MANAGER_X_CONNECTION_H__
+#ifndef WINDOW_MANAGER_X_CONNECTION_H_
+#define WINDOW_MANAGER_X_CONNECTION_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 extern "C" {
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 }
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 
-namespace chromeos {
+namespace window_manager {
 
 typedef ::Atom XAtom;
 typedef ::Window XWindow;
 
 class ByteMap;  // from util.h
 template<class T> class Stacker;  // from util.h
 
 // This is an abstract base class representing a connection to the X
 // server.
 class XConnection {
@@ skipping 239 matching lines @@
 
  private:
   virtual bool GrabServerImpl() = 0;
   virtual bool UngrabServerImpl() = 0;
 
   bool server_grabbed_;
 
   DISALLOW_COPY_AND_ASSIGN(XConnection);
 };
 
-};  // namespace chromeos
+};  // namespace window_manager
 
 #endif