Revert of Android: Remove GetApplicationContext part 2

chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackgroundServiceTest.java

 // 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.
 
 package org.chromium.chrome.browser;
 
 import android.content.Context;
+import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.SmallTest;
 
 import com.google.android.gms.gcm.TaskParams;
 
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.metrics.RecordHistogram;
+import org.chromium.base.test.util.AdvancedMockContext;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.ntp.snippets.SnippetsLauncher;
 import org.chromium.chrome.browser.precache.PrecacheController;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
 
 /**
  * Tests {@link ChromeBackgroundService}.
  */
 @RunWith(ChromeJUnit4ClassRunner.class)
 @RetryOnFailure
 public class ChromeBackgroundServiceTest {
+    private Context mContext;
     private BackgroundSyncLauncher mSyncLauncher;
     private SnippetsLauncher mSnippetsLauncher;
     private MockTaskService mTaskService;
 
     static class MockTaskService extends ChromeBackgroundService {
         private boolean mDidLaunchBrowser = false;
         private boolean mDidFetchSnippets = false;
         private boolean mDidRescheduleFetching = false;
         private boolean mHasPrecacheInstance = true;
         private boolean mPrecachingStarted = false;
@@ skipping 54 matching lines @@
             });
         }
 
         protected void deletePrecacheInstance() {
             mHasPrecacheInstance = false;
         }
     }
 
     @Before
     public void setUp() throws Exception {
+        mContext = new AdvancedMockContext(
+                InstrumentationRegistry.getInstrumentation().getTargetContext());
         BackgroundSyncLauncher.setGCMEnabled(false);
         RecordHistogram.setDisabledForTests(true);
-        mSyncLauncher = BackgroundSyncLauncher.create();
-        mSnippetsLauncher = SnippetsLauncher.create();
+        mSyncLauncher = BackgroundSyncLauncher.create(mContext);
+        mSnippetsLauncher = SnippetsLauncher.create(mContext);
         mTaskService = new MockTaskService();
     }
 
     @After
     public void tearDown() throws Exception {
         RecordHistogram.setDisabledForTests(false);
     }
 
     private void deleteSyncLauncherInstance() {
         mSyncLauncher.destroy();
@@ skipping 111 matching lines @@
         deleteSnippetsLauncherInstance();
         // Set the pref indicating that fetching was scheduled before.
         ContextUtils.getAppSharedPreferences()
                 .edit()
                 .putBoolean(SnippetsLauncher.PREF_IS_SCHEDULED, true)
                 .apply();
 
         startOnInitializeTasksAndVerify(/*shouldStart=*/true, /*shouldReschedule=*/true);
     }
 }