wm: Update namespace and header define guards.

src/platform/window_manager/window_manager.cc

 // 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.
 
 #include "window_manager/window_manager.h"
 
 #include <queue>
 
 extern "C" {
 #include <gdk/gdkx.h>
@@ skipping 28 matching lines @@
               "/usr/sbin/monitor_reconfigure",
               "Command to configure an external monitor");
 DEFINE_string(screenshot_binary,
               "/usr/bin/screenshot",
               "Path to the screenshot binary");
 DEFINE_string(screenshot_output_dir,
               ".", "Output directory for screenshots");
 
 DEFINE_bool(wm_use_compositing, true, "Use compositing");
 
-namespace chromeos {
+namespace window_manager {
+
+using chromeos::Closure;
+using chromeos::NewPermanentCallback;
 
 const int WindowManager::kPanelBarHeight = 18;
 
 // Time to spend fading the hotkey overlay in or out, in milliseconds.
 static const int kHotkeyOverlayAnimMs = 100;
 
 static const char* XEventTypeToName(int type) {
   switch (type) {
     CHROMEOS_CASE_RETURN_LABEL(ButtonPress);
     CHROMEOS_CASE_RETURN_LABEL(ButtonRelease);
@@ skipping 1432 matching lines @@
     } else {
       message = StringPrintf("Saved screenshot of window %s to %s",
                              XidStr(xid).c_str(), filename.c_str());
       LOG(INFO) << message;
     }
   }
 
   // TODO: Display the message onscreen.
 }
 
-}  // namespace chromeos
+}  // namespace window_manager