Detect situation when there is no missing send completion signal in P2PSocket implementation.

content/renderer/p2p/socket_dispatcher.cc

Index: content/renderer/p2p/socket_dispatcher.cc
diff --git a/content/renderer/p2p/socket_dispatcher.cc b/content/renderer/p2p/socket_dispatcher.cc
index a436ff0eee7544c101a1cc2e01c5c045a34cd207..714d443ebc61b6c89ae673904f060ce13960e441 100644
--- a/content/renderer/p2p/socket_dispatcher.cc
+++ b/content/renderer/p2p/socket_dispatcher.cc
@@ -156,10 +156,12 @@ void P2PSocketDispatcher::OnIncomingTcpConnection(
   }
 }
 
-void P2PSocketDispatcher::OnSendComplete(int socket_id) {
+void P2PSocketDispatcher::OnSendComplete(
+    int socket_id,
+    const P2PSendPacketMetrics& send_metrics) {
   P2PSocketClientImpl* client = GetClient(socket_id);
   if (client) {
-    client->OnSendComplete();
+    client->OnSendComplete(send_metrics);
   }
 }