H264SpsPpsTracker now return PacketAction on CopyAndFixBitstream.

webrtc/modules/video_coding/h264_sps_pps_tracker.h

Index: webrtc/modules/video_coding/h264_sps_pps_tracker.h
diff --git a/webrtc/modules/video_coding/h264_sps_pps_tracker.h b/webrtc/modules/video_coding/h264_sps_pps_tracker.h
index 6de092a365a31e87122a6783ed5c50db44b68d8e..b54afbb260614bc42c9ab299919132bcf4725c41 100644
--- a/webrtc/modules/video_coding/h264_sps_pps_tracker.h
+++ b/webrtc/modules/video_coding/h264_sps_pps_tracker.h
@@ -25,7 +25,9 @@ namespace video_coding {
 
 class H264SpsPpsTracker {
  public:
-  bool CopyAndFixBitstream(VCMPacket* packet);
+  enum PacketAction { kInsert, kDrop, kRequestKeyframe };
+
+  PacketAction CopyAndFixBitstream(VCMPacket* packet);
 
  private:
   struct PpsInfo {