Using hostname for TLS setup when IP address is not available. This usually

happens when domain name is not resolved through DNS.

BUG=https://code.google.com/p/webrtc/issues/detail?id=3384
R=jiayl@chromium.org
TBR=sergeyu@chromium.org

Review URL: https://codereview.chromium.org/439153004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287553 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/renderer_host/p2p/socket_host_tcp.cc

@@ -185,10 +185,17 @@ void P2PSocketHostTcpBase::StartTls() {
 
   // Default ssl config.
   const net::SSLConfig ssl_config;
-  net::HostPortPair dest_host_port_pair =
-      net::HostPortPair::FromIPEndPoint(remote_address_.ip_address);
+  net::HostPortPair dest_host_port_pair;
+  if (remote_address_.ip_address.address().empty()) {
+    DCHECK(!remote_address_.hostname.empty());
+    dest_host_port_pair = net::HostPortPair::FromString(
+        remote_address_.hostname);
+  } else {
+    dest_host_port_pair = net::HostPortPair::FromIPEndPoint(
+        remote_address_.ip_address);
     if (!remote_address_.hostname.empty())
       dest_host_port_pair.set_host(remote_address_.hostname);
+  }
 
   net::ClientSocketFactory* socket_factory =
       net::ClientSocketFactory::GetDefaultFactory();