[Offline pages] Updates to background scheduling to use BTS

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/BackgroundJobScheduler.java

-// Copyright 2017 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.
-
-package org.chromium.chrome.browser.offlinepages;
-
-import android.content.Context;
-import android.os.Bundle;
-
-import org.chromium.components.background_task_scheduler.BackgroundTaskSchedulerFactory;
-import org.chromium.components.background_task_scheduler.TaskIds;
-import org.chromium.components.background_task_scheduler.TaskInfo;
-
-import java.util.concurrent.TimeUnit;
-
-/**
- * The background job scheduler class used for scheduling tasks using JobScheduler.
- */
-public class BackgroundJobScheduler extends BackgroundScheduler {
-    public BackgroundJobScheduler(Context context) {
-        super(context);
-    }
-
-    @Override
-    public void cancel() {
-        BackgroundTaskSchedulerFactory.getScheduler().cancel(
-                getContext(), TaskIds.OFFLINE_PAGES_BACKGROUND_JOB_ID);
-    }
-
-    @Override
-    protected void scheduleImpl(TriggerConditions triggerConditions, long delayStartSeconds,
-            long executionDeadlineSeconds, boolean overwrite) {
-        Bundle taskExtras = new Bundle();
-        TaskExtrasPacker.packTimeInBundle(taskExtras);
-        TaskExtrasPacker.packTriggerConditionsInBundle(taskExtras, triggerConditions);
-
-        TaskInfo taskInfo =
-                TaskInfo.createOneOffTask(TaskIds.OFFLINE_PAGES_BACKGROUND_JOB_ID,
-                                OfflineBackgroundTask.class,
-                                TimeUnit.SECONDS.toMillis(delayStartSeconds),
-                                TimeUnit.SECONDS.toMillis(executionDeadlineSeconds))
-                        .setRequiredNetworkType(triggerConditions.requireUnmeteredNetwork()
-                                        ? TaskInfo.NETWORK_TYPE_UNMETERED
-                                        : TaskInfo.NETWORK_TYPE_ANY)
-                        .setUpdateCurrent(overwrite)
-                        .setIsPersisted(true)
-                        .setExtras(taskExtras)
-                        .setRequiresCharging(triggerConditions.requirePowerConnected())
-                        .build();
-
-        BackgroundTaskSchedulerFactory.getScheduler().schedule(getContext(), taskInfo);
-    }
-}