Add a Javascript wrapper around ServiceRegistry and expose it to WebUI.

content/content_renderer.gypi

 # 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.
 
 {
   'dependencies': [
     'content_common_mojo_bindings',
     '../base/base.gyp:base',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
@@ skipping 350 matching lines @@
       'renderer/media/webmediasource_impl.cc',
       'renderer/media/webmediasource_impl.h',
       'renderer/media/websourcebuffer_impl.cc',
       'renderer/media/websourcebuffer_impl.h',
       'renderer/memory_benchmarking_extension.cc',
       'renderer/memory_benchmarking_extension.h',
       'renderer/menu_item_builder.cc',
       'renderer/menu_item_builder.h',
       'renderer/mhtml_generator.cc',
       'renderer/mhtml_generator.h',
+      'renderer/mojo/service_registry_js_wrapper.cc',
+      'renderer/mojo/service_registry_js_wrapper.h',
       'renderer/mouse_lock_dispatcher.cc',
       'renderer/mouse_lock_dispatcher.h',
       'renderer/net_info_helper.cc',
       'renderer/net_info_helper.h',
       'renderer/notification_permission_dispatcher.cc',
       'renderer/notification_permission_dispatcher.h',
       'renderer/notification_provider.cc',
       'renderer/notification_provider.h',
       'renderer/push_messaging_dispatcher.cc',
       'renderer/push_messaging_dispatcher.h',
@@ skipping 504 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }