[rtcp] in Tmmbn/tmmbr packets bitrate updated to 64bit

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

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbr.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbr.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbr.cc
index b19fa08b3bdd215531de2ed49210c8737b9545c1..b24b039b407f0a2b91fd7673aa19d8cdbe84be7b 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbr.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbr.cc
@@ -64,7 +64,8 @@ bool Tmmbr::Parse(const RtcpCommonHeader& header, const uint8_t* payload) {
   size_t number_of_items = items_size_bytes / TmmbItem::kLength;
   items_.resize(number_of_items);
   for (TmmbItem& item : items_) {
-    item.Parse(next_item);
+    if (!item.Parse(next_item))
+      return false;
     next_item += TmmbItem::kLength;
   }
   return true;