Android: Remove GetApplicationContext part 4

chrome/test/android/javatests/src/org/chromium/chrome/test/util/ChromeTabUtils.java

 // Copyright 2015 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.test.util;
 
 import android.app.Instrumentation;
 import android.text.TextUtils;
 
 import org.junit.Assert;
@@ skipping 247 matching lines @@
         final CallbackHelper createdCallback = new CallbackHelper();
         normalTabModel.addObserver(
                 new EmptyTabModelObserver() {
                     @Override
                     public void didAddTab(Tab tab, TabLaunchType type) {
                         createdCallback.notifyCalled();
                         normalTabModel.removeObserver(this);
                     }
                 });
         // Tablet and phone have different new tab buttons; click the right one.
-        if (DeviceFormFactor.isTablet(activity)) {
+        if (DeviceFormFactor.isTablet()) {
             StripLayoutHelper strip =
                     TabStripUtils.getStripLayoutHelper(activity, false /* incognito */);
             CompositorButton newTabButton = strip.getNewTabButton();
             TabStripUtils.clickCompositorButton(newTabButton, instrumentation, activity);
             instrumentation.waitForIdleSync();
         } else {
             TouchCommon.singleClickView(activity.findViewById(R.id.new_tab_button));
         }
 
         try {
@@ skipping 269 matching lines @@
             @Override
             public void run() {
                 TabModelSelector selector = activity.getTabModelSelector();
                 for (TabModel tabModel : selector.getModels()) {
                     tabModel.removeObserver(observer);
                 }
             }
         });
     }
 }