Supervised users: Post blocking pool tasks with CONTINUE_SHUTDOWN behavior.

chrome/browser/supervised_user/supervised_user_service.cc

 // Copyright 2014 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/supervised_user/supervised_user_service.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/memory/ref_counted.h"
@@ skipping 605 matching lines @@
 }
 
 void SupervisedUserService::OnSiteListUpdated() {
   FOR_EACH_OBSERVER(
       SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 }
 
 void SupervisedUserService::LoadBlacklist(const base::FilePath& path,
                                           const GURL& url) {
   base::PostTaskAndReplyWithResult(
-      BrowserThread::GetBlockingPool(),
+      BrowserThread::GetBlockingPool()->GetTaskRunnerWithShutdownBehavior(
+          base::SequencedWorkerPool::CONTINUE_ON_SHUTDOWN).get(),
       FROM_HERE,
       base::Bind(&base::PathExists, path),
       base::Bind(&SupervisedUserService::OnBlacklistFileChecked,
                  weak_ptr_factory_.GetWeakPtr(), path, url));
 }
 
 void SupervisedUserService::OnBlacklistFileChecked(const base::FilePath& path,
                                                    const GURL& url,
                                                    bool file_exists) {
   if (file_exists) {
@@ skipping 323 matching lines @@
   // The active user can be NULL in unit tests.
   if (user_manager::UserManager::Get()->GetActiveUser()) {
     return UTF16ToUTF8(user_manager::UserManager::Get()->GetUserDisplayName(
         user_manager::UserManager::Get()->GetActiveUser()->GetUserID()));
   }
   return std::string();
 #else
   return profile_->GetPrefs()->GetString(prefs::kProfileName);
 #endif
 }