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

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

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbn.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbn.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbn.cc
index ec3b42803931bdcc566dea7c74523d50e24695ef..730b40865d22d1d750a06c2a58421722ca1793e6 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbn.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/tmmbn.cc
@@ -63,7 +63,8 @@ bool Tmmbn::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;