Add picture ID support in RtcVideoEncoder.

content/renderer/media/rtc_video_encoder.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_
 #define CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
@@ skipping 51 matching lines @@
   virtual int32_t Release() OVERRIDE;
   virtual int32_t SetChannelParameters(uint32_t packet_loss, int rtt) OVERRIDE;
   virtual int32_t SetRates(uint32_t new_bit_rate, uint32_t frame_rate) OVERRIDE;
 
  private:
   class Impl;
   friend class RTCVideoEncoder::Impl;
 
   // Return an encoded output buffer to WebRTC.
   void ReturnEncodedImage(scoped_ptr<webrtc::EncodedImage> image,
-                          int32 bitstream_buffer_id);
+                          int32 bitstream_buffer_id,
+                          uint16 picture_id);
 
   void NotifyError(int32_t error);
 
   void RecordInitEncodeUMA(int32_t init_retval);
 
   base::ThreadChecker thread_checker_;
 
   // The video codec type, as reported to WebRTC.
   const webrtc::VideoCodecType video_codec_type_;
 
@@ skipping 19 matching lines @@
   // RTCVideoEncoder.
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<RTCVideoEncoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RTCVideoEncoder);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_