Fixes issue with accelerators when a menu is open

ui/aura/client/accelerator_client.cc

Index: ui/aura/client/accelerator_client.cc
diff --git a/ui/aura/client/accelerator_client.cc b/ui/aura/client/accelerator_client.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b24395085d295ff1330e78aa787df54125e549fb
--- /dev/null
+++ b/ui/aura/client/accelerator_client.cc
@@ -0,0 +1,25 @@
+// Copyright (c) 2012 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 "ui/aura/client/accelerator_client.h"
+
+#include "ui/aura/root_window.h"
+
+namespace aura {
+
+namespace client {
+
+const char kMenuAcceleratorClient[] = "AuraMenuAcceleratorClient";
+
+void SetAcceleratorClient(AcceleratorClient* client) {
+  RootWindow::GetInstance()->SetProperty(kMenuAcceleratorClient, client);
+}
+
+AcceleratorClient* GetAcceleratorClient() {
+  return reinterpret_cast<AcceleratorClient*>(
+      RootWindow::GetInstance()->GetProperty(kMenuAcceleratorClient));
+}
+
+}  // namespace client
+}  // namespace aura