Move RTCP histograms from vie_channel to video channel stats proxies.

webrtc/video/vie_channel.h

Index: webrtc/video/vie_channel.h
diff --git a/webrtc/video/vie_channel.h b/webrtc/video/vie_channel.h
index 228b50e5d4b42a590e46a13407123f379c610fd5..c1d077b3f71ae45ddd2124ef5f4611427251b06d 100644
--- a/webrtc/video/vie_channel.h
+++ b/webrtc/video/vie_channel.h
@@ -130,12 +130,6 @@ class ViEChannel : public VCMFrameTypeCallback,
   void RegisterSendChannelRtpStatisticsCallback(
       StreamDataCountersCallback* callback);
 
-  void GetSendRtcpPacketTypeCounter(
-      RtcpPacketTypeCounter* packet_counter) const;
-
-  void GetReceiveRtcpPacketTypeCounter(
-      RtcpPacketTypeCounter* packet_counter) const;
-
   void RegisterSendSideDelayObserver(SendSideDelayObserver* observer);
 
   // Called on any new send bitrate estimate.
@@ -318,18 +312,9 @@ class ViEChannel : public VCMFrameTypeCallback,
       rtc::CritScope lock(&critsect_);
       if (callback_)
         callback_->RtcpPacketTypesCounterUpdated(ssrc, packet_counter);
-      counter_map_[ssrc] = packet_counter;
-    }
-
-    virtual std::map<uint32_t, RtcpPacketTypeCounter> GetPacketTypeCounterMap()
-        const {
-      rtc::CritScope lock(&critsect_);
-      return counter_map_;
     }
 
    private:
-    std::map<uint32_t, RtcpPacketTypeCounter> counter_map_
-        GUARDED_BY(critsect_);
   } rtcp_packet_type_counter_observer_;
 
   const bool sender_;