chromeos: Notify window manager earlier about signout.

chrome/browser/chromeos/wm_ipc.cc

 // Copyright (c) 2010 The Chromium 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 "chrome/browser/chromeos/wm_ipc.h"
 
 #include <gdk/gdkx.h>
 extern "C" {
 #include <X11/Xlib.h>
 }
@@ skipping 148 matching lines @@
   std::vector<int> values;
   values.push_back(static_cast<int>(logged_in));
   SetIntProperty(gdk_x11_get_default_root_xwindow(),
                  type_to_atom_[ATOM_CHROME_LOGGED_IN],
                  values);
 }
 
 void WmIpc::NotifyAboutSignout() {
   Message msg(chromeos::WM_IPC_MESSAGE_WM_NOTIFY_SIGNING_OUT);
   SendMessage(msg);
+  XFlush(ui::GetXDisplay());
 }
 
 WmIpc::WmIpc() {
   scoped_array<char*> names(new char*[kNumAtoms]);
   scoped_array<Atom> atoms(new Atom[kNumAtoms]);
 
   for (int i = 0; i < kNumAtoms; ++i) {
     // Need to const_cast because XInternAtoms() wants a char**.
     names[i] = const_cast<char*>(kAtomInfos[i].name);
   }
@@ skipping 26 matching lines @@
   // Let the window manager know which version of the IPC messages we support.
   Message msg(chromeos::WM_IPC_MESSAGE_WM_NOTIFY_IPC_VERSION);
   // TODO: The version number is the latest listed in wm_ipc.h --
   // ideally, once this header is shared between Chrome and the Chrome OS window
   // manager, we'll just define the version statically in the header.
   msg.set_param(0, 1);
   SendMessage(msg);
 }
 
 }  // namespace chromeos