Revert of Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/modules/bitrate_controller/include/bitrate_controller.h

 /*
  *  Copyright (c) 2012 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.
  *
  *  Usage: this class will register multiple RtcpBitrateObserver's one at each
@@ skipping 37 matching lines @@
   // RTCPBandwidthObservers). It does one  aggregated send side bandwidth
   // estimation and divide the available bitrate between all its registered
   // BitrateObservers.
  public:
   static const int kDefaultStartBitratebps = 300000;
 
   // Deprecated:
   // TODO(perkj): BitrateObserver has been deprecated and is not used in WebRTC.
   // Remove this method once other other projects does not use it.
   static BitrateController* CreateBitrateController(Clock* clock,
-                                                    BitrateObserver* observer,
-                                                    RtcEventLog* event_log);
-
-  static BitrateController* CreateBitrateController(Clock* clock,
-                                                    RtcEventLog* event_log);
+                                                    BitrateObserver* observer);
+  static BitrateController* CreateBitrateController(Clock* clock);
 
   virtual ~BitrateController() {}
 
   virtual RtcpBandwidthObserver* CreateRtcpBandwidthObserver() = 0;
 
   // Deprecated
   virtual void SetStartBitrate(int start_bitrate_bps) = 0;
   // Deprecated
   virtual void SetMinMaxBitrate(int min_bitrate_bps, int max_bitrate_bps) = 0;
   virtual void SetBitrates(int start_bitrate_bps,
                            int min_bitrate_bps,
                            int max_bitrate_bps) = 0;
 
   virtual void ResetBitrates(int bitrate_bps,
                              int min_bitrate_bps,
                              int max_bitrate_bps) = 0;
 
   virtual void UpdateDelayBasedEstimate(uint32_t bitrate_bps) = 0;
 
+  virtual void SetEventLog(RtcEventLog* event_log) = 0;
+
   // Gets the available payload bandwidth in bits per second. Note that
   // this bandwidth excludes packet headers.
   virtual bool AvailableBandwidth(uint32_t* bandwidth) const = 0;
 
   virtual void SetReservedBitrate(uint32_t reserved_bitrate_bps) = 0;
 
   virtual bool GetNetworkParameters(uint32_t* bitrate,
                                     uint8_t* fraction_loss,
                                     int64_t* rtt) = 0;
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_BITRATE_CONTROLLER_INCLUDE_BITRATE_CONTROLLER_H_