Remove OnLocalSsrcChanged and rename EncoderStateFeedback.

webrtc/video/encoder_rtcp_feedback.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.
  */
-#ifndef WEBRTC_VIDEO_ENCODER_STATE_FEEDBACK_H_
-#define WEBRTC_VIDEO_ENCODER_STATE_FEEDBACK_H_
+#ifndef WEBRTC_VIDEO_ENCODER_RTCP_FEEDBACK_H_
+#define WEBRTC_VIDEO_ENCODER_RTCP_FEEDBACK_H_
 
 #include <vector>
 
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 #include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 
 class ViEEncoder;
 
-class EncoderStateFeedback : public RtcpIntraFrameObserver {
+class EncoderRtcpFeedback : public RtcpIntraFrameObserver {
  public:
-  EncoderStateFeedback(Clock* clock,
+  EncoderRtcpFeedback(Clock* clock,
                        const std::vector<uint32_t>& ssrcs,
                        ViEEncoder* encoder);
   void OnReceivedIntraFrameRequest(uint32_t ssrc) override;
   void OnReceivedSLI(uint32_t ssrc, uint8_t picture_id) override;
   void OnReceivedRPSI(uint32_t ssrc, uint64_t picture_id) override;
-  void OnLocalSsrcChanged(uint32_t old_ssrc, uint32_t new_ssrc) override;
 
  private:
   bool HasSsrc(uint32_t ssrc);
   size_t GetStreamIndex(uint32_t ssrc);
 
   Clock* const clock_;
   const std::vector<uint32_t> ssrcs_;
   ViEEncoder* const vie_encoder_;
 
   rtc::CriticalSection crit_;
   std::vector<int64_t> time_last_intra_request_ms_ GUARDED_BY(crit_);
 };
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_VIDEO_ENCODER_STATE_FEEDBACK_H_
+#endif  // WEBRTC_VIDEO_ENCODER_RTCP_FEEDBACK_H_