Wire up rtc_packet_ids to P2PSocketHostTcp, which is required for correct BWE in WebRTC.

content/browser/renderer_host/p2p/socket_host_test_utils.h

Index: content/browser/renderer_host/p2p/socket_host_test_utils.h
diff --git a/content/browser/renderer_host/p2p/socket_host_test_utils.h b/content/browser/renderer_host/p2p/socket_host_test_utils.h
index 8d2d2440fc5cb4017318d77847d5689dea5c3b97..7b7552f9c7b8f22ed448570d1350a6bbb2c9c9b2 100644
--- a/content/browser/renderer_host/p2p/socket_host_test_utils.h
+++ b/content/browser/renderer_host/p2p/socket_host_test_utils.h
@@ -123,4 +123,15 @@ MATCHER_P(MatchIncomingSocketMessage, address, "") {
   return std::get<1>(params) == address;
 }
 
+MATCHER_P2(MatchSendPacketMetrics, rtc_packet_id, test_start_time, "") {
+  if (arg->type() != P2PMsg_OnSendComplete::ID)
+    return false;
+
+  P2PMsg_OnSendComplete::Param params;
+  P2PMsg_OnSendComplete::Read(arg, &params);
+  return std::get<1>(params).rtc_packet_id == rtc_packet_id &&
+         std::get<1>(params).send_time >= test_start_time &&
+         std::get<1>(params).send_time <= base::TimeTicks::Now();
+}
+
 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_TEST_UTILS_H_