Remove GetReceiveBandwidthEstimatorStats.

Removes unnecessary non-standard stats that we don't really make use of.

BUG=
R=pthatcher@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/47379004

Cr-Commit-Position: refs/heads/master@{#8588}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8588 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/media/base/mediachannel.h b/talk/media/base/mediachannel.h
index 19cb9a3..03363fe 100644
--- a/talk/media/base/mediachannel.h
+++ b/talk/media/base/mediachannel.h
@@ -944,8 +944,7 @@
         actual_enc_bitrate(0),
         retransmit_bitrate(0),
         transmit_bitrate(0),
-        bucket_delay(0),
-        total_received_propagation_delta_ms(0) {
+        bucket_delay(0) {
   }
 
   int available_send_bandwidth;
@@ -955,11 +954,6 @@
   int retransmit_bitrate;
   int transmit_bitrate;
   int64_t bucket_delay;
-  // The following stats are only valid when
-  // StatsOptions::include_received_propagation_stats is true.
-  int total_received_propagation_delta_ms;
-  std::vector<int> recent_received_propagation_delta_ms;
-  std::vector<int64_t> recent_received_packet_group_arrival_time_ms;
 };
 
 struct VoiceMediaInfo {
@@ -991,12 +985,6 @@
   std::vector<DataReceiverInfo> receivers;
 };
 
-struct StatsOptions {
-  StatsOptions() : include_received_propagation_stats(false) {}
-
-  bool include_received_propagation_stats;
-};
-
 class VoiceMediaChannel : public MediaChannel {
  public:
   enum Error {
@@ -1115,13 +1103,7 @@
   // |capturer|. If |ssrc| is non zero create a new stream with |ssrc| as SSRC.
   virtual bool SetCapturer(uint32 ssrc, VideoCapturer* capturer) = 0;
   // Gets quality stats for the channel.
-  virtual bool GetStats(const StatsOptions& options, VideoMediaInfo* info) = 0;
-  // This is needed for MediaMonitor to use the same template for voice, video
-  // and data MediaChannels.
-  bool GetStats(VideoMediaInfo* info) {
-    return GetStats(StatsOptions(), info);
-  }
-
+  virtual bool GetStats(VideoMediaInfo* info) = 0;
   // Send an intra frame to the receivers.
   virtual bool SendIntraFrame() = 0;
   // Reuqest each of the remote senders to send an intra frame.