Move ProxyConfigService construction onto the IO thread.

chrome/service/service_process.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 "chrome/service/service_process.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
@@ skipping 191 matching lines @@
   // See if we need to stay running.
   ScheduleShutdownCheck();
 
   // Occasionally check to see if we need to launch the browser to get the
   // policy state information.
   CloudPrintPolicyCheckIfNeeded();
   return true;
 }
 
 bool ServiceProcess::Teardown() {
+  if (request_context_getter_.get())
+    request_context_getter_->StartTearDown();
   service_prefs_.reset();
   cloud_print_proxy_.reset();
 
   ipc_server_.reset();
   // Signal this event before shutting down the service process. That way all
   // background threads can cleanup.
   shutdown_event_.Signal();
   io_thread_.reset();
   file_thread_.reset();
+  // The ServiceURLRequestContextGetter must be destroyed after the other
+  // threads so that its shutdown tasks have a chance to run.
+  request_context_getter_ = NULL;
   // The NetworkChangeNotifier must be destroyed after all other threads that
   // might use it have been shut down.
   network_change_notifier_.reset();
 
   service_process_state_->SignalStopped();
   return true;
 }
 
 // This method is called when a shutdown command is received from IPC channel
 // or there was an error in the IPC channel.
@@ skipping 119 matching lines @@
   if (enabled_services_ && !ipc_server_->is_client_connected()) {
     GetCloudPrintProxy()->CheckCloudPrintProxyPolicy();
   }
   ScheduleCloudPrintPolicyCheck();
 }
 
 ServiceProcess::~ServiceProcess() {
   Teardown();
   g_service_process = NULL;
 }