Add IPC stubs between browser and ServiceWorker's worker context in the child process

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': [
     '../gin/gin.gyp:gin',
     '../jingle/jingle.gyp:jingle_glue',
     '../media/media.gyp:media',
     '../net/net.gyp:net',
@@ skipping 467 matching lines @@
     'renderer/sad_plugin.cc',
     'renderer/sad_plugin.h',
     'renderer/savable_resources.cc',
     'renderer/savable_resources.h',
     'renderer/scoped_clipboard_writer_glue.cc',
     'renderer/scoped_clipboard_writer_glue.h',
     'renderer/service_worker/embedded_worker_dispatcher.cc',
     'renderer/service_worker/embedded_worker_dispatcher.h',
     'renderer/service_worker/service_worker_context_client.cc',
     'renderer/service_worker/service_worker_context_client.h',
+    'renderer/service_worker/service_worker_context_message_filter.cc',
+    'renderer/service_worker/service_worker_context_message_filter.h',
     'renderer/shared_memory_seqlock_reader.cc',
     'renderer/shared_memory_seqlock_reader.h',
     'renderer/shared_worker_repository.cc',
     'renderer/shared_worker_repository.h',
     'renderer/skia_benchmarking_extension.cc',
     'renderer/skia_benchmarking_extension.h',
     'renderer/speech_recognition_dispatcher.cc',
     'renderer/speech_recognition_dispatcher.h',
     'renderer/stats_collection_controller.cc',
     'renderer/stats_collection_controller.h',
@@ skipping 252 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }