Move RtcEventLog object from inside VoiceEngine to Call.

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 a3de360cf6a4a399eb82bbfa5353bf2e83061d2a..283644e3bc0ed5ea856bc912c9f67b853b67c9fe 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
@@ -158,13 +158,12 @@ RTCPSender::RTCPSender(
     Clock* clock,
     ReceiveStatistics* receive_statistics,
     RtcpPacketTypeCounterObserver* packet_type_counter_observer,
-    RtcEventLog* event_log,
     Transport* outgoing_transport)
     : audio_(audio),
       clock_(clock),
       random_(clock_->TimeInMicroseconds()),
       method_(RtcpMode::kOff),
-      event_log_(event_log),
+      event_log_(nullptr),
       transport_(outgoing_transport),
 
       critical_section_rtcp_sender_(
@@ -772,6 +771,7 @@ int32_t RTCPSender::SendCompoundRTCP(
     const uint16_t* nack_list,
     bool repeat,
     uint64_t pictureID) {
+  CriticalSectionScoped event_lock(event_log_crit_.get());
   PacketContainer container(transport_, event_log_);
   {
     CriticalSectionScoped lock(critical_section_rtcp_sender_.get());
@@ -1024,6 +1024,7 @@ bool RTCPSender::AllVolatileFlagsConsumed() const {
 }
 
 bool RTCPSender::SendFeedbackPacket(const rtcp::TransportFeedback& packet) {
+  CriticalSectionScoped lock(event_log_crit_.get());
   class Sender : public rtcp::RtcpPacket::PacketReadyCallback {
    public:
     Sender(Transport* transport, RtcEventLog* event_log)
@@ -1053,4 +1054,8 @@ bool RTCPSender::SendFeedbackPacket(const rtcp::TransportFeedback& packet) {
          !sender.send_failure_;
 }
 
+void RTCPSender::SetRtcEventLog(webrtc::RtcEventLog* event_log) {
+  CriticalSectionScoped lock(event_log_crit_.get());
+  event_log_ = event_log;
+}
 }  // namespace webrtc