Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/pc/channelmanager.h

Index: webrtc/pc/channelmanager.h
diff --git a/webrtc/pc/channelmanager.h b/webrtc/pc/channelmanager.h
index 72a2f056b5a4c0b6bb797f1a5792f575bb8a9ee3..058b8a188ea9f26b1e5e4d4b77e28541d0dea1be 100644
--- a/webrtc/pc/channelmanager.h
+++ b/webrtc/pc/channelmanager.h
@@ -125,12 +125,6 @@ class ChannelManager {
   // Stops recording AEC dump.
   void StopAecDump();
 
-  // Starts RtcEventLog using existing file.
-  bool StartRtcEventLog(rtc::PlatformFile file);
-
-  // Stops logging RtcEventLog.
-  void StopRtcEventLog();
-
  private:
   typedef std::vector<VoiceChannel*> VoiceChannels;
   typedef std::vector<VideoChannel*> VideoChannels;