[Android] BackgroundTaskScheduler reschedule implementation

components/background_task_scheduler/android/javatests/src/org/chromium/components/background_task_scheduler/BackgroundTaskSchedulerJobServiceTest.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.components.background_task_scheduler;
 
 import android.annotation.TargetApi;
 import android.app.job.JobInfo;
 import android.content.Context;
 import android.os.Build;
@@ skipping 16 matching lines @@
         @Override
         public boolean onStartTask(
                 Context context, TaskParameters taskParameters, TaskFinishedCallback callback) {
             return false;
         }
 
         @Override
         public boolean onStopTask(Context context, TaskParameters taskParameters) {
             return false;
         }
+
+        @Override
+        public void reschedule(Context context) {}
     }
 
     @SmallTest
     public void testOneOffTaskInfoWithDeadlineConversion() {
         TaskInfo oneOffTask = TaskInfo.createOneOffTask(TaskIds.TEST, TestBackgroundTask.class,
                                               TimeUnit.MINUTES.toMillis(200))
                                       .build();
         JobInfo jobInfo = BackgroundTaskSchedulerJobService.createJobInfoFromTaskInfo(
                 getInstrumentation().getTargetContext(), oneOffTask);
         assertEquals(oneOffTask.getTaskId(), jobInfo.getId());
@@ skipping 81 matching lines @@
                 getInstrumentation().getTargetContext(),
                 taskBuilder.setRequiredNetworkType(TaskInfo.NETWORK_TYPE_UNMETERED).build());
         assertEquals(JobInfo.NETWORK_TYPE_UNMETERED, jobInfo.getNetworkType());
 
         jobInfo = BackgroundTaskSchedulerJobService.createJobInfoFromTaskInfo(
                 getInstrumentation().getTargetContext(),
                 taskBuilder.setRequiresCharging(true).build());
         assertTrue(jobInfo.isRequireCharging());
     }
 }