Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/voice_engine/channel_proxy.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 142 matching lines @@
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return
       channel()->SendTelephoneEventOutband(event, duration_ms, 10, false) == 0;
 }
 
 void ChannelProxy::SetSink(std::unique_ptr<AudioSinkInterface> sink) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   channel()->SetSink(std::move(sink));
 }
 
+void ChannelProxy::SetRtcEventLog(RtcEventLog* event_log) {

[the sun, 2016/03/21 13:03:09]

RTC_DCHECK(thread_checker_.CalledOnValidThread());

[ivoc, 2016/03/22 13:44:55]

Done.

+  channel()->SetRtcEventLog(event_log);
+}
+
 Channel* ChannelProxy::channel() const {
   RTC_DCHECK(channel_owner_.channel());
   return channel_owner_.channel();
 }
 
 }  // namespace voe
 }  // namespace webrtc