Add logs when stun or turn host lookup is completed.

webrtc/p2p/base/turnport.cc

Index: webrtc/p2p/base/turnport.cc
diff --git a/webrtc/p2p/base/turnport.cc b/webrtc/p2p/base/turnport.cc
index 20c2b6002f78db2ab505fc3668f5adc5cea9bcb3..e75b51793415ee72c3c839fef9de8d715d66be92 100644
--- a/webrtc/p2p/base/turnport.cc
+++ b/webrtc/p2p/base/turnport.cc
@@ -619,6 +619,8 @@ void TurnPort::ResolveTurnAddress(const rtc::SocketAddress& address) {
 
 void TurnPort::OnResolveResult(rtc::AsyncResolverInterface* resolver) {
   ASSERT(resolver == resolver_);
+  LOG_J(LS_INFO, this) << "TURN host lookup result " << resolver_->GetError();
+
   // If DNS resolve is failed when trying to connect to the server using TCP,
   // one of the reason could be due to DNS queries blocked by firewall.
   // In such cases we will try to connect to the server with hostname, assuming
@@ -635,8 +637,6 @@ void TurnPort::OnResolveResult(rtc::AsyncResolverInterface* resolver) {
   rtc::SocketAddress resolved_address = server_address_.address;
   if (resolver_->GetError() != 0 ||
       !resolver_->GetResolvedAddress(ip().family(), &resolved_address)) {
-    LOG_J(LS_WARNING, this) << "TURN host lookup received error "
-                            << resolver_->GetError();
     error_ = resolver_->GetError();
     OnAllocateError();
     return;