Get mojo_shell building inside chromium checkout.

mojo/services/window_manager/window_manager_app_win.cc

Index: mojo/services/window_manager/window_manager_app_win.cc
diff --git a/mojo/services/window_manager/window_manager_app_win.cc b/mojo/services/window_manager/window_manager_app_win.cc
new file mode 100644
index 0000000000000000000000000000000000000000..11d43dc725b006c27f00016027481019b152bb50
--- /dev/null
+++ b/mojo/services/window_manager/window_manager_app_win.cc
@@ -0,0 +1,14 @@
+// Copyright 2015 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 "mojo/services/window_manager/window_manager_app.h"
+
+namespace window_manager {
+
+ui::Accelerator WindowManagerApp::ConvertEventToAccelerator(
+    const ui::KeyEvent* event) {
+  return ui::Accelerator(event->key_code(), event->flags());
+}
+
+}  // namespace window_manager