Enable send-side BWE by default for video in call tests.

webrtc/modules/rtp_rtcp/source/rtcp_sender.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
index 48f7595d77b3757a80d043e69db5ab8a7fba119a..ff535ea4c61499bd01b8aa0356ae5feeb3659f8a 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
@@ -1049,6 +1049,12 @@ bool RTCPSender::SendFeedbackPacket(const rtcp::TransportFeedback& packet) {
     // but we can't because of an incorrect warning (C4822) in MVS 2013.
   } sender(transport_, event_log_);
 
+  {
+    rtc::CritScope lock(&critical_section_rtcp_sender_);
+    if (method_ == RtcpMode::kOff)
+      return false;

[brandtr, 2017/02/06 13:25:25]

Is this a bugfix? If so, consider mentioning it in the commit msg.

[stefan-webrtc, 2017/02/06 13:35:35]

Yes

+  }
+
   RTC_DCHECK_LE(max_packet_size_, IP_PACKET_SIZE);
   uint8_t buffer[IP_PACKET_SIZE];
   return packet.BuildExternalBuffer(buffer, max_packet_size_, &sender) &&