Rename ChannelGroup to CongestionController and move to webrtc/call/.

webrtc/video/webrtc_video.gypi

 # Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 {
   'variables': {
     'webrtc_video_dependencies': [
@@ skipping 34 matching lines @@
       'video_engine/overuse_frame_detector.cc',
       'video_engine/overuse_frame_detector.h',
       'video_engine/payload_router.cc',
       'video_engine/payload_router.h',
       'video_engine/report_block_stats.cc',
       'video_engine/report_block_stats.h',
       'video_engine/stream_synchronization.cc',
       'video_engine/stream_synchronization.h',
       'video_engine/vie_channel.cc',
       'video_engine/vie_channel.h',
-      'video_engine/vie_channel_group.cc',
-      'video_engine/vie_channel_group.h',
       'video_engine/vie_defines.h',
       'video_engine/vie_encoder.cc',
       'video_engine/vie_encoder.h',
       'video_engine/vie_receiver.cc',
       'video_engine/vie_receiver.h',
       'video_engine/vie_remb.cc',
       'video_engine/vie_remb.h',
       'video_engine/vie_sync_module.cc',
       'video_engine/vie_sync_module.h',
     ],
   },
 }