Auto convert content shell tests to JUnit4

content/public/android/javatests/src/org/chromium/content/browser/ContentViewPopupZoomerTest.java

-// Copyright 2012 The Chromium Authors. All rights reserved.
+// 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.content.browser;
 
+import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.MediumTest;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup;
 
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.content.browser.test.util.Criteria;
 import org.chromium.content.browser.test.util.CriteriaHelper;
 import org.chromium.content.browser.test.util.DOMUtils;
-import org.chromium.content_shell_apk.ContentShellTestBase;
 
 import java.util.concurrent.TimeoutException;
 
+import org.junit.Rule;
+import org.junit.Test;
+import org.chromium.base.test.BaseJUnit4ClassRunner;
+import org.junit.runner.RunWith;
+import org.chromium.content_shell_apk.ContentShellActivityTestRule;
+
 /**
  * Class which provides test coverage for Popup Zoomer.
  */
+@RunWith(BaseJUnit4ClassRunner.class)
 @RetryOnFailure
-public class ContentViewPopupZoomerTest extends ContentShellTestBase {
+public class ContentViewPopupZoomerTest {
+
+    @Rule
+    public ContentShellActivityTestRule mActivityTestRule = new ContentShellActivityTestRule();
     private static PopupZoomer findPopupZoomer(ViewGroup view) {
         assert view != null;
         for (int i = 0; i < view.getChildCount(); i++) {
             View child = view.getChildAt(i);
             if (child instanceof PopupZoomer) return (PopupZoomer) child;
         }
         return null;
     }
 
     private static class PopupShowingCriteria extends Criteria {
@@ skipping 41 matching lines @@
         testUrl.append("</small></div></body></html>");
         return UrlUtils.encodeHtmlDataUri(testUrl.toString());
     }
 
     public ContentViewPopupZoomerTest() {
     }
 
     /**
      * Tests that shows a zoomer popup and makes sure it has valid dimensions.
      */
+    @Test
     @MediumTest
     @Feature({"Browser"})
     public void testPopupZoomerShowsUp() throws InterruptedException, TimeoutException {
-        launchContentShellWithUrl(generateTestUrl(100, 15, "clickme"));
-        waitForActiveShellToBeDoneLoading();
+        mActivityTestRule.launchContentShellWithUrl(generateTestUrl(100, 15, "clickme"));
+        mActivityTestRule.waitForActiveShellToBeDoneLoading();
 
-        final ContentViewCore viewCore = getContentViewCore();
+        final ContentViewCore viewCore = mActivityTestRule.getContentViewCore();
         final ViewGroup view = viewCore.getContainerView();
 
         // The popup should be hidden before the click.
         CriteriaHelper.pollInstrumentationThread(new PopupShowingCriteria(view, false));
 
         // Once clicked, the popup should show up.
         DOMUtils.clickNode(viewCore, "clickme");
         CriteriaHelper.pollInstrumentationThread(new PopupShowingCriteria(view, true));
 
         // The shown popup should have valid dimensions eventually.
         CriteriaHelper.pollInstrumentationThread(new PopupHasNonZeroDimensionsCriteria(view));
     }
 
     /**
      * Tests Popup zoomer hides when device back key is pressed.
      */
+    @Test
     @MediumTest
     @Feature({"Browser"})
     @RetryOnFailure
     public void testBackKeyDismissesPopupZoomer() throws InterruptedException, TimeoutException {
-        launchContentShellWithUrl(generateTestUrl(100, 15, "clickme"));
-        waitForActiveShellToBeDoneLoading();
+        mActivityTestRule.launchContentShellWithUrl(generateTestUrl(100, 15, "clickme"));
+        mActivityTestRule.waitForActiveShellToBeDoneLoading();
 
-        final ContentViewCore viewCore = getContentViewCore();
+        final ContentViewCore viewCore = mActivityTestRule.getContentViewCore();
         final ViewGroup view = viewCore.getContainerView();
 
         CriteriaHelper.pollInstrumentationThread(new PopupShowingCriteria(view, false));
         DOMUtils.clickNode(viewCore, "clickme");
         CriteriaHelper.pollInstrumentationThread(new PopupShowingCriteria(view, true));
-        sendKeys(KeyEvent.KEYCODE_BACK);
+        InstrumentationRegistry.getInstrumentation().sendKeyDownUpSync(KeyEvent.KEYCODE_BACK);
         // When device key is pressed, popup zoomer should hide if already showing.
         CriteriaHelper.pollInstrumentationThread(new PopupShowingCriteria(view, false));
     }
 }