Fix for issue 2362: On-demand update hang with "Checking for update..."...

chrome/browser/browser_process_impl.cc

 // Copyright (c) 2006-2008 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/browser_process_impl.h"
 
 #include "base/command_line.h"
 #include "base/thread.h"
 #include "base/path_service.h"
 #include "chrome/browser/automation/automation_provider_list.h"
@@ skipping 266 matching lines @@
     return;
   io_thread_.swap(thread);
 }
 
 void BrowserProcessImpl::CreateFileThread() {
   DCHECK(!created_file_thread_ && file_thread_.get() == NULL);
   created_file_thread_ = true;
 
   scoped_ptr<base::Thread> thread(
       new BrowserProcessSubThread(ChromeThread::FILE));
-  if (!thread->Start())
+  base::Thread::Options options;
+  options.message_loop_type = MessageLoop::TYPE_IO;
+  if (!thread->StartWithOptions(options))
     return;
   file_thread_.swap(thread);
 }
 
 void BrowserProcessImpl::CreateDBThread() {
   DCHECK(!created_db_thread_ && db_thread_.get() == NULL);
   created_db_thread_ = true;
 
   scoped_ptr<base::Thread> thread(
       new BrowserProcessSubThread(ChromeThread::DB));
@@ skipping 45 matching lines @@
       new ChromeViews::AcceleratorHandler);
   accelerator_handler_.swap(accelerator_handler);
 }
 
 void BrowserProcessImpl::CreateGoogleURLTracker() {
   DCHECK(google_url_tracker_.get() == NULL);
   scoped_ptr<GoogleURLTracker> google_url_tracker(new GoogleURLTracker);
   google_url_tracker_.swap(google_url_tracker);
 }