Style fixes in rtcp_packet/

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

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/app.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.cc
index 322bf363b4e450ff0932c6d33c25d95b53c82ec3..e9d107811fc39ccec49855e246cff95cb56c49a5 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.cc
@@ -32,6 +32,11 @@ constexpr size_t App::kMaxDataSize;
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //  8 |                   application-dependent data                ...
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+App::App() : sub_type_(0), ssrc_(0), name_(0) {}
+
+App::~App() = default;
+
 bool App::Parse(const CommonHeader& packet) {
   RTC_DCHECK_EQ(packet.type(), kPacketType);
   if (packet.payload_size_bytes() < kAppBaseLength) {
@@ -65,6 +70,10 @@ void App::SetData(const uint8_t* data, size_t data_length) {
   data_.SetData(data, data_length);
 }
 
+size_t App::BlockLength() const {
+  return kHeaderLength + kAppBaseLength + data_.size();
+}
+
 bool App::Create(uint8_t* packet,
                  size_t* index,
                  size_t max_length,