wm: Update namespace and header define guards.

src/platform/window_manager/key_bindings.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/key_bindings.h"
 
 #include <set>
 
 extern "C" {
 #include <X11/Xutil.h>
 }
 #include <gflags/gflags.h>
 
 #include "base/scoped_ptr.h"
 #include "base/logging.h"
 #include "chromeos/obsolete_logging.h"
 #include "window_manager/x_connection.h"
 
-namespace chromeos {
+namespace window_manager {
+
+using chromeos::Closure;
 
 bool KeyBindings::KeyComboComparator::operator()(const KeyCombo& a,
                                                  const KeyCombo& b) const {
   return (a.key < b.key) ||
       ((a.key == b.key) && (a.modifiers < b.modifiers));
 }
 
 struct Action {
   Action(Closure* begin_closure_param,
          Closure* repeat_closure_param,
@@ skipping 194 matching lines @@
     case XK_Super_L:
     case XK_Super_R:
       return kSuperMask;
     case XK_Hyper_L:
     case XK_Hyper_R:
       return kHyperMask;
   }
   return 0;
 }
 
-}  // namespace chromeos
+}  // namespace window_manager