Correcting the amount of padding when send side bwe includes RTP overhead.

webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc

Index: webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc b/webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc
index c4edc732b8fceb61b16c5323463e672f11593d17..58817ce33c03d5a0eb271c82c49e2c94f2bac14b 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_packet_history.cc
@@ -200,6 +200,8 @@ bool RtpPacketHistory::FindSeqNum(uint16_t sequence_number, int* index) const {
 }
 
 int RtpPacketHistory::FindBestFittingPacket(size_t size) const {
+  // TODO(minyue): it looks like that the fitting expects |size| to include

[minyue-webrtc, 2017/03/24 07:10:56]

Philip and Stefan, would you take a look at this?

[michaelt, 2017/03/27 14:25:01]

Looks wrong to me as well.

+  // headeer, but its use in RTPSender does not seem to match.
   if (size < kMinPacketRequestBytes || stored_packets_.empty())
     return -1;
   size_t min_diff = std::numeric_limits<size_t>::max();