Replace deprecated Android java test annotations

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.filters.SmallTest;
 import android.test.InstrumentationTestCase;
-import android.test.suitebuilder.annotation.SmallTest;
 
 import com.google.android.gms.gcm.TaskParams;
 
 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;
@@ skipping 186 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);
     }
 }