Simple fix so the utility process respects single process mode.

chrome/browser/web_resource/web_resource_service.cc

 // Copyright (c) 2009 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 "chrome/browser/web_resource/web_resource_service.h"
 
 #include "base/string_util.h"
 #include "base/time.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_thread.h"
@@ skipping 88 matching lines @@
     : web_resource_service_(web_resource_service),
       json_data_(json_data), got_response_(false) {
   }
 
   void Start() {
     AddRef();  // balanced in Cleanup.
 
     // If we don't have a resource_dispatcher_host_, assume we're in
     // a test and run the unpacker directly in-process.
     bool use_utility_process =
-        web_resource_service_->resource_dispatcher_host_ != NULL;
+        web_resource_service_->resource_dispatcher_host_ != NULL &&
+        !CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess);
 
 #if defined(OS_POSIX)
     // TODO(port): Don't use a utility process on linux (crbug.com/22703) or
     // MacOS (crbug.com/8102) until problems related to autoupdate are fixed.
     use_utility_process = false;
 #endif
 
     if (use_utility_process) {
       ChromeThread::PostTask(
           ChromeThread::IO, FROM_HERE,
@@ skipping 185 matching lines @@
   // languages, which can be different from the locale.
   std::wstring languageList = prefs->GetString(prefs::kAcceptLanguages);
   int pos = languageList.find(L",");
   pos = pos >= 0 ? pos : languageList.length();
   return languageList.substr(0, pos);
 #else
   return ASCIIToWide(g_browser_process->GetApplicationLocale());
 #endif
 }