net: Disconnect proxy sockets that have a certificate error.

BUG=116398
TEST=Set a SPDY proxy with a certificate error. Ensure that requests always get ERR_PROXY_CERTIFICATE_INVALID, even with several reloads.


Review URL: http://codereview.chromium.org/9600022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@124970 0039d316-1c4b-4281-b951-d872f2087c98

net/http/http_proxy_client_socket_pool.cc

@@ -225,6 +225,7 @@ int HttpProxyConnectJob::DoSSLConnectComplete(int result) {
     } else {
       // TODO(rch): allow the user to deal with proxy cert errors in the
       // same way as server cert errors.
+      transport_socket_handle_->socket()->Disconnect();
       return ERR_PROXY_CERTIFICATE_INVALID;
     }
   }