wm: Update namespace and header define guards.

src/platform/window_manager/mock_x_connection.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/mock_x_connection.h"
 
 #include "base/logging.h"
 
 #include "window_manager/util.h"
 
-namespace chromeos {
+namespace window_manager {
 
 MockXConnection::MockXConnection()
     : windows_(),
       stacked_xids_(new Stacker<XWindow>),
       next_window_(1),
       // TODO: Replace magic numbers.
       root_(CreateWindow(None, 0, 0, 1024, 768, true, false, 0)),
       overlay_(CreateWindow(root_, 0, 0, 1024, 768, true, false, 0)),
       next_atom_(1000),
       focused_xid_(None),
@@ skipping 585 matching lines @@
 
 // static
 void MockXConnection::InitUnmapEvent(XEvent* event, XWindow xid) {
   CHECK(event);
   XUnmapEvent* unmap_event = &(event->xunmap);
   memset(unmap_event, 0, sizeof(*unmap_event));
   unmap_event->type = UnmapNotify;
   unmap_event->window = xid;
 }
 
-}  // namespace chromeos
+}  // namespace window_manager