In the ClearTo function we risked removing one packet too many from the set of |missing_packets_|, and in the case of H264 this would cause us to create incomplete delta frames. This is turn disrupt the stream and a keyframe request has to be made. Bug: webrtc:8536 Change-Id: Ie7ccd5f1631a4cf3bd463878d5b0fe746744ec23 Reviewed-on: https://webrtc-review.googlesource.com/30141 Commit-Queue: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21119}