Add service registration for Mojo services defined under chrome/

chrome/browser/extensions/chrome_mojo_service_registration.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 "chrome/browser/extensions/chrome_mojo_service_registration.h"
+
+#include "base/logging.h"
+
+namespace extensions {
+
+void RegisterChromeServicesForFrame(content::RenderFrameHost* render_frame_host,
+                                    const Extension* extension) {
+  DCHECK(render_frame_host);
+  DCHECK(extension);
+
+  // TODO(kmarshall): Add Mojo service registration.
+}
+
+}  // namespace extensions