Get mojo_shell building inside chromium checkout.

mojo/services/window_manager/window_manager_app_android.cc

+// 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"
+
+#include <android/keycodes.h>
+
+#include "ui/events/keycodes/keyboard_codes_posix.h"
+
+namespace window_manager {
+
+ui::Accelerator WindowManagerApp::ConvertEventToAccelerator(
+    const ui::KeyEvent* event) {
+  if (event->platform_keycode() == AKEYCODE_BACK)
+    return ui::Accelerator(ui::VKEY_BROWSER_BACK, 0);
+  return ui::Accelerator(event->key_code(), event->flags());
+}
+
+}  // namespace window_manager