Prepare ExternalPolicyDataUpdater and ResourceCache for blocking pool

chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc

 // Copyright (c) 2013 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/chromeos/policy/user_cloud_policy_manager_factory_chromeos.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
+#include "base/memory/ref_counted.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/login/user.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h"
 #include "chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/policy/browser_policy_connector.h"
 #include "chrome/browser/policy/cloud/device_management_service.h"
 #include "chrome/browser/policy/cloud/resource_cache.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chromeos/chromeos_paths.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+#include "content/public/browser/browser_thread.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace policy {
 
 namespace {
 
 // Subdirectory in the user's profile for storing legacy user policies.
 const base::FilePath::CharType kDeviceManagementDir[] =
     FILE_PATH_LITERAL("Device Management");
 // File in the above directory for storing legacy user policy dmtokens.
@@ skipping 103 matching lines @@
 
   scoped_ptr<UserCloudPolicyStoreChromeOS> store(
       new UserCloudPolicyStoreChromeOS(
           chromeos::DBusThreadManager::Get()->GetCryptohomeClient(),
           chromeos::DBusThreadManager::Get()->GetSessionManagerClient(),
           username, policy_key_dir, token_cache_file, policy_cache_file));
   if (force_immediate_load)
     store->LoadImmediately();
 
   scoped_ptr<ResourceCache> resource_cache;
-  if (command_line->HasSwitch(switches::kEnableComponentCloudPolicy))
-    resource_cache.reset(new ResourceCache(resource_cache_dir));
+  if (command_line->HasSwitch(switches::kEnableComponentCloudPolicy)) {
+    resource_cache.reset(new ResourceCache(
+        resource_cache_dir,
+        content::BrowserThread::GetMessageLoopProxyForThread(
+            content::BrowserThread::FILE)));
+  }
 
   scoped_ptr<UserCloudPolicyManagerChromeOS> manager(
       new UserCloudPolicyManagerChromeOS(
           store.PassAs<CloudPolicyStore>(),
           resource_cache.Pass(),
           wait_for_initial_policy,
           base::TimeDelta::FromSeconds(kInitialPolicyFetchTimeoutSeconds)));
   manager->Init();
   manager->Connect(g_browser_process->local_state(),
                    device_management_service,
@@ skipping 22 matching lines @@
   BrowserContextKeyedBaseFactory::BrowserContextDestroyed(context);
 }
 
 void UserCloudPolicyManagerFactoryChromeOS::SetEmptyTestingFactory(
     content::BrowserContext* context) {}
 
 void UserCloudPolicyManagerFactoryChromeOS::CreateServiceNow(
     content::BrowserContext* context) {}
 
 }  // namespace policy