Add experimental option for TCP FastOpen.

Use chrome.exe --enable-tcp-fastopen

BUG=none
TEST=none yet

Review URL: http://codereview.chromium.org/4039003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63913 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/net/socket/ssl_client_socket_openssl.cc b/net/socket/ssl_client_socket_openssl.cc
index bbe3ee444..3aae457 100644
--- a/net/socket/ssl_client_socket_openssl.cc
+++ b/net/socket/ssl_client_socket_openssl.cc
@@ -631,6 +631,14 @@
   return false;
 }
 
+bool SSLClientSocketOpenSSL::UsingTCPFastOpen() const {
+  if (transport_.get() && transport_->socket())
+    return transport_->socket()->UsingTCPFastOpen();
+
+  NOTREACHED();
+  return false;
+}
+
 // Socket methods
 
 int SSLClientSocketOpenSSL::Read(IOBuffer* buf,