Use TaskScheduler instead of blocking pool in request_coordinator_factory.cc.

chrome/browser/android/offline_pages/request_coordinator_factory.cc

 // Copyright 2016 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/android/offline_pages/request_coordinator_factory.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "base/sequenced_task_runner.h"
-#include "base/threading/sequenced_worker_pool.h"
+#include "base/task_scheduler/post_task.h"
 #include "chrome/browser/android/offline_pages/background_loader_offliner.h"
 #include "chrome/browser/android/offline_pages/background_scheduler_bridge.h"
 #include "chrome/browser/android/offline_pages/downloads/offline_page_notification_bridge.h"
 #include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
 #include "chrome/browser/android/offline_pages/prerendering_offliner.h"
 #include "chrome/browser/net/nqe/ui_network_quality_estimator_service.h"
 #include "chrome/browser/net/nqe/ui_network_quality_estimator_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_constants.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/offline_pages/core/background/offliner.h"
 #include "components/offline_pages/core/background/offliner_policy.h"
 #include "components/offline_pages/core/background/request_coordinator.h"
 #include "components/offline_pages/core/background/request_queue.h"
 #include "components/offline_pages/core/background/request_queue_store.h"
 #include "components/offline_pages/core/background/request_queue_store_sql.h"
 #include "components/offline_pages/core/background/scheduler.h"
 #include "components/offline_pages/core/downloads/download_notifying_observer.h"
 #include "components/offline_pages/core/offline_page_feature.h"
-#include "content/public/browser/browser_thread.h"
 #include "net/nqe/network_quality_estimator.h"
 
 namespace offline_pages {
 
 RequestCoordinatorFactory::RequestCoordinatorFactory()
     : BrowserContextKeyedServiceFactory(
           "OfflineRequestCoordinator",
           BrowserContextDependencyManager::GetInstance()) {
   DependsOn(OfflinePageModelFactory::GetInstance());
 }
@@ skipping 18 matching lines @@
       OfflinePageModelFactory::GetInstance()->GetForBrowserContext(context);
 
   // Determines which offliner to use based on flag.
   if (ShouldUseNewBackgroundLoader()) {
     offliner.reset(new BackgroundLoaderOffliner(context, policy.get(), model));
   } else {
     offliner.reset(new PrerenderingOffliner(context, policy.get(), model));
   }
 
   scoped_refptr<base::SequencedTaskRunner> background_task_runner =
-      content::BrowserThread::GetBlockingPool()->GetSequencedTaskRunner(
-          content::BrowserThread::GetBlockingPool()->GetSequenceToken());
+      base::CreateSequencedTaskRunnerWithTraits(
+          base::TaskTraits().MayBlock().WithPriority(
+              base::TaskPriority::BACKGROUND));
   Profile* profile = Profile::FromBrowserContext(context);
   base::FilePath queue_store_path =
       profile->GetPath().Append(chrome::kOfflinePageRequestQueueDirname);
 
   std::unique_ptr<RequestQueueStoreSQL> queue_store(
       new RequestQueueStoreSQL(background_task_runner, queue_store_path));
   std::unique_ptr<RequestQueue> queue(new RequestQueue(std::move(queue_store)));
   std::unique_ptr<Scheduler>
       scheduler(new android::BackgroundSchedulerBridge());
   net::NetworkQualityEstimator::NetworkQualityProvider*
       network_quality_estimator =
           UINetworkQualityEstimatorServiceFactory::GetForProfile(profile);
   RequestCoordinator* request_coordinator = new RequestCoordinator(
       std::move(policy), std::move(offliner), std::move(queue),
       std::move(scheduler), network_quality_estimator);
 
   DownloadNotifyingObserver::CreateAndStartObserving(
       request_coordinator,
       base::MakeUnique<android::OfflinePageNotificationBridge>());
 
   return request_coordinator;
 }
 
 }  // namespace offline_pages