Add render-side manager for MediaSession

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': [
     '../base/base.gyp:base',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
     '../cc/blink/cc_blink.gyp:cc_blink',
@@ skipping 251 matching lines @@
       'renderer/media/android/audio_decoder_android.cc',
       'renderer/media/android/audio_decoder_android.h',
       'renderer/media/android/media_info_loader.cc',
       'renderer/media/android/media_info_loader.h',
       'renderer/media/android/media_source_delegate.cc',
       'renderer/media/android/media_source_delegate.h',
       'renderer/media/android/renderer_demuxer_android.cc',
       'renderer/media/android/renderer_demuxer_android.h',
       'renderer/media/android/renderer_media_player_manager.cc',
       'renderer/media/android/renderer_media_player_manager.h',
+      'renderer/media/android/renderer_media_session_manager.cc',
+      'renderer/media/android/renderer_media_session_manager.h',
       'renderer/media/android/stream_texture_factory.h',
       'renderer/media/android/stream_texture_factory_impl.cc',
       'renderer/media/android/stream_texture_factory_impl.h',
       'renderer/media/android/stream_texture_factory_synchronous_impl.cc',
       'renderer/media/android/stream_texture_factory_synchronous_impl.h',
       'renderer/media/android/webmediaplayer_android.cc',
       'renderer/media/android/webmediaplayer_android.h',
       'renderer/media/android/webmediasession_android.cc',
       'renderer/media/android/webmediasession_android.h',
       'renderer/media/audio_decoder.cc',
@@ skipping 642 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }