Add logging of host lookups made by TurnPort to the RtcEventLog.

webrtc/p2p/base/turnport_unittest.cc

Index: webrtc/p2p/base/turnport_unittest.cc
diff --git a/webrtc/p2p/base/turnport_unittest.cc b/webrtc/p2p/base/turnport_unittest.cc
index 7e0e291defdc5713fe0d9dbd183569e9f9cf54e9..e2cc99316d2e7d9ac4c118d7896571fa6b6e3700 100644
--- a/webrtc/p2p/base/turnport_unittest.cc
+++ b/webrtc/p2p/base/turnport_unittest.cc
@@ -261,9 +261,10 @@ class TurnPortTest : public testing::Test,
                                    const ProtocolAddress& server_address,
                                    const std::string& origin) {
     RelayCredentials credentials(username, password);
+    webrtc::RtcEventLog* event_log = nullptr;
     turn_port_.reset(TurnPort::Create(&main_, &socket_factory_, network, 0, 0,
                                       kIceUfrag1, kIcePwd1, server_address,
-                                      credentials, 0, origin));
+                                      credentials, 0, origin, event_log));
     // This TURN port will be the controlling.
     turn_port_->SetIceRole(ICEROLE_CONTROLLING);
     ConnectSignals();
@@ -283,9 +284,11 @@ class TurnPortTest : public testing::Test,
     }
 
     RelayCredentials credentials(username, password);
-    turn_port_.reset(TurnPort::Create(
-        &main_, &socket_factory_, MakeNetwork(kLocalAddr1), socket_.get(),
-        kIceUfrag1, kIcePwd1, server_address, credentials, 0, std::string()));
+    webrtc::RtcEventLog* event_log = nullptr;
+    turn_port_.reset(
+        TurnPort::Create(&main_, &socket_factory_, MakeNetwork(kLocalAddr1),
+                         socket_.get(), kIceUfrag1, kIcePwd1, server_address,
+                         credentials, 0, std::string(), event_log));
     // This TURN port will be the controlling.
     turn_port_->SetIceRole(ICEROLE_CONTROLLING);
     ConnectSignals();