Dont request keyframes if the stream is inactive or if we are currently receiving a keyframe.

webrtc/video/rtp_stream_receiver.cc

Index: webrtc/video/rtp_stream_receiver.cc
diff --git a/webrtc/video/rtp_stream_receiver.cc b/webrtc/video/rtp_stream_receiver.cc
index 88d86ef986714df85332333ef5cff9d6849bd1e0..243cd4a23585b7d09ca3bb3bb71bd87e2d30d3a0 100644
--- a/webrtc/video/rtp_stream_receiver.cc
+++ b/webrtc/video/rtp_stream_receiver.cc
@@ -401,6 +401,14 @@ void RtpStreamReceiver::OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) {
     nack_module_->UpdateRtt(max_rtt_ms);
 }
 
+rtc::Optional<int64_t> RtpStreamReceiver::LastReceivedPacketMs() const {
+  return packet_buffer_->LastReceivedPacketMs();
+}
+
+rtc::Optional<int64_t> RtpStreamReceiver::LastReceivedKeyframePacketMs() const {
+  return packet_buffer_->LastReceivedKeyframePacketMs();
+}
+
 // TODO(nisse): Drop return value.
 bool RtpStreamReceiver::ReceivePacket(const uint8_t* packet,
                                       size_t packet_length,