Run safebrowsing_service_test through the net testserver code.

net/test/local_sync_test_server.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/test/local_sync_test_server.h"
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "base/values.h"
 #include "net/test/test_server.h"
@@ skipping 11 matching lines @@
                       net::TestServer::kLocalhost,
                       FilePath()),
       xmpp_port_(xmpp_port) {
   SetPort(port);
 }
 
 LocalSyncTestServer::~LocalSyncTestServer() {}
 
 bool LocalSyncTestServer::AddCommandLineArguments(
     CommandLine* command_line) const {
-  LocalTestServer::AddCommandLineArguments(command_line);
+  if (!LocalTestServer::AddCommandLineArguments(command_line))
+    return false;
   if (xmpp_port_ != 0) {
     std::string xmpp_port_str = base::IntToString(xmpp_port_);
     command_line->AppendArg("--xmpp-port=" + xmpp_port_str);
   }
   return true;
 }
 
 }  // namespace net