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

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
===================================================================
--- chrome/browser/browser_process_impl.cc	(revision 2267)
+++ chrome/browser/browser_process_impl.cc	(working copy)
@@ -284,7 +284,9 @@
 
   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);
 }