Fix first run ui hanging. The threads need to get started earlier....

chrome/browser/browser_main.cc

 // Copyright (c) 2006-2009 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/browser_main.h"
 
 #include <algorithm>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 602 matching lines @@
       parsed_command_line.HasSwitch(switches::kShowIcons)) {
     return HandleIconsCommands(parsed_command_line);
   } else if (parsed_command_line.HasSwitch(switches::kMakeDefaultBrowser)) {
     if (ShellIntegration::SetAsDefaultBrowser()) {
       return ResultCodes::NORMAL_EXIT;
     } else {
       return ResultCodes::SHELL_INTEGRATION_FAILED;
     }
   }
 
+  // Create the child threads.  We need to do this since ChromeThread::PostTask
+  // silently deletes a posted task if the target message loop isn't created.
+  // Note: must be done before FirstRun code is run.
+  browser_process->db_thread();
+  browser_process->file_thread();
+  browser_process->io_thread();
+
   // Importing other browser settings is done in a browser-like process
   // that exits when this task has finished.
 #if defined(OS_WIN)
   if (parsed_command_line.HasSwitch(switches::kImport))
     return FirstRun::ImportNow(profile, parsed_command_line);
 #endif
 
   // When another process is running, use it instead of starting us.
   switch (process_singleton.NotifyOtherProcess()) {
     case ProcessSingleton::PROCESS_NONE:
@@ skipping 61 matching lines @@
   // Sets things up so that if we crash from this point on, a dialog will
   // popup asking the user to restart chrome. It is done this late to avoid
   // testing against a bunch of special cases that are taken care early on.
   PrepareRestartOnCrashEnviroment(parsed_command_line);
 
 #if defined(OS_WIN)
   // Initialize Winsock.
   net::EnsureWinsockInit();
 #endif  // defined(OS_WIN)
 
-  // Create the child threads.  We need to do this since ChromeThread::PostTask
-  // silently deletes a posted task if the target message loop isn't created.
-  browser_process->db_thread();
-  browser_process->file_thread();
-  browser_process->io_thread();
-
   // Initialize and maintain DNS prefetcher module.
   chrome_browser_net::DnsPrefetcherInit dns_prefetch(user_prefs, local_state);
 
   scoped_refptr<FieldTrial> http_prioritization_trial =
       new FieldTrial("HttpPrioritization", 100);
   // Put 10% of people in the fallback experiment with the http prioritization
   // code disabled.
   const int holdback_group =
       http_prioritization_trial->AppendGroup("_no_http_prioritization", 10);
   if (http_prioritization_trial->group() == holdback_group) {
@@ skipping 164 matching lines @@
   if (metrics)
     metrics->Stop();
 
   // browser_shutdown takes care of deleting browser_process, so we need to
   // release it.
   browser_process.release();
   browser_shutdown::Shutdown();
 
   return result_code;
 }