Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/api/peerconnectionfactoryproxy.h

 /*
  *  Copyright 2014 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 47 matching lines @@
                 CreateVideoSource,
                 cricket::VideoCapturer*)
   PROXY_METHOD2(rtc::scoped_refptr<VideoTrackInterface>,
                 CreateVideoTrack,
                 const std::string&,
                 VideoTrackSourceInterface*)
   PROXY_METHOD2(rtc::scoped_refptr<AudioTrackInterface>,
                 CreateAudioTrack, const std::string&,  AudioSourceInterface*)
   PROXY_METHOD2(bool, StartAecDump, rtc::PlatformFile, int64_t)
   PROXY_METHOD0(void, StopAecDump)
+  // TODO(ivoc): Remove the StartRtcEventLog and StopRtcEventLog functions as
+  // soon as they are removed from PeerConnectionFactoryInterface.
   PROXY_METHOD1(bool, StartRtcEventLog, rtc::PlatformFile)
   PROXY_METHOD0(void, StopRtcEventLog)
 
  private:
   rtc::scoped_refptr<PeerConnectionInterface> CreatePeerConnection_ot(
       const PeerConnectionInterface::RTCConfiguration& a1,
       const MediaConstraintsInterface* a2,
       cricket::PortAllocator* a3,
       DtlsIdentityStoreInterface* a4,
       PeerConnectionObserver* a5) {
@@ skipping 11 matching lines @@
     rtc::scoped_ptr<cricket::PortAllocator> ptr_a3(a3);
     rtc::scoped_ptr<DtlsIdentityStoreInterface> ptr_a4(a4);
     return c_->CreatePeerConnection(a1, std::move(ptr_a3), std::move(ptr_a4),
                                     a5);
   }
   END_PROXY()
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_PEERCONNECTIONFACTORYPROXY_H_