Collect all ConnectionAttempts from both sockets in TransportConnectJob.

content/browser/renderer_host/p2p/socket_host_test_utils.cc

Index: content/browser/renderer_host/p2p/socket_host_test_utils.cc
diff --git a/content/browser/renderer_host/p2p/socket_host_test_utils.cc b/content/browser/renderer_host/p2p/socket_host_test_utils.cc
index 12257b9b85b76c1b3267893a6fc9b1e19d130f55..ed0796649b25e9062b4af5f1c5309f392c756a40 100644
--- a/content/browser/renderer_host/p2p/socket_host_test_utils.cc
+++ b/content/browser/renderer_host/p2p/socket_host_test_utils.cc
@@ -172,6 +172,10 @@ bool FakeSocket::GetSSLInfo(net::SSLInfo* ssl_info) {
   return false;
 }
 
+void FakeSocket::GetConnectionAttempts(net::ConnectionAttempts* out) const {
+  out->clear();
+}
+
 void CreateRandomPacket(std::vector<char>* packet) {
   size_t size = kStunHeaderSize + rand() % 1000;
   packet->resize(size);