Style fixes in rtcp_packet/

webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc
index 312b3f96d1c4898f0cdf479342cd8be453dc298e..3cadd431b38aca1febbf9784b605579555a76460 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.cc
@@ -43,6 +43,8 @@ SenderReport::SenderReport()
       sender_packet_count_(0),
       sender_octet_count_(0) {}
 
+SenderReport::~SenderReport() = default;
+
 bool SenderReport::Parse(const CommonHeader& packet) {
   RTC_DCHECK_EQ(packet.type(), kPacketType);
 
@@ -74,6 +76,11 @@ bool SenderReport::Parse(const CommonHeader& packet) {
   return true;
 }
 
+size_t SenderReport::BlockLength() const {
+  return kHeaderLength + kSenderBaseLength +
+         report_blocks_.size() * ReportBlock::kLength;
+}
+
 bool SenderReport::Create(uint8_t* packet,
                           size_t* index,
                           size_t max_length,