[Offline Prefetch] Create a new JobScheduler task to wake up for net activity.

chrome/android/java_sources.gni

 # 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.
 
 chrome_java_sources = [
   "java/src/com/google/android/apps/chrome/appwidget/bookmarks/BookmarkThumbnailWidgetProvider.java",
   "java/src/org/chromium/chrome/browser/ActivityTabTaskDescriptionHelper.java",
   "java/src/org/chromium/chrome/browser/ActivityTaskDescriptionIconGenerator.java",
   "java/src/org/chromium/chrome/browser/AfterStartupTaskUtils.java",
   "java/src/org/chromium/chrome/browser/AppIndexingUtil.java",
@@ skipping 653 matching lines @@
   "java/src/org/chromium/chrome/browser/offlinepages/OfflinePageItem.java",
   "java/src/org/chromium/chrome/browser/offlinepages/OfflinePageTabObserver.java",
   "java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java",
   "java/src/org/chromium/chrome/browser/offlinepages/SavePageRequest.java",
   "java/src/org/chromium/chrome/browser/offlinepages/TaskExtrasPacker.java",
   "java/src/org/chromium/chrome/browser/offlinepages/TriggerConditions.java",
   "java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadBridge.java",
   "java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadItem.java",
   "java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageNotificationBridge.java",
   "java/src/org/chromium/chrome/browser/offlinepages/interfaces/BackgroundSchedulerProcessor.java",
+  "java/src/org/chromium/chrome/browser/offlinepages/prefetch/PrefetchBackgroundTask.java",
   "java/src/org/chromium/chrome/browser/omaha/ExponentialBackoffScheduler.java",
   "java/src/org/chromium/chrome/browser/omaha/MarketURLGetter.java",
   "java/src/org/chromium/chrome/browser/omaha/OmahaBase.java",
   "java/src/org/chromium/chrome/browser/omaha/OmahaClient.java",
   "java/src/org/chromium/chrome/browser/omaha/OmahaDelegate.java",
   "java/src/org/chromium/chrome/browser/omaha/OmahaDelegateBase.java",
   "java/src/org/chromium/chrome/browser/omaha/OmahaService.java",
   "java/src/org/chromium/chrome/browser/omaha/RequestData.java",
   "java/src/org/chromium/chrome/browser/omaha/RequestFailureException.java",
   "java/src/org/chromium/chrome/browser/omaha/RequestGenerator.java",
@@ skipping 1032 matching lines @@
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTestBase.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/TypedUrlsTest.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/ui/PassphraseTypeDialogFragmentTest.java",
 ]
 
 # Only used for testing, should not be shipped to end users.
 if (!is_official_build) {
   chrome_java_sources += [ "java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java" ]
   chrome_test_java_sources += [ "javatests/src/org/chromium/chrome/browser/offlinepages/OfflinePageSavePageLaterEvaluationTest.java" ]
 }