[App banners] Add server-controlled experiment to disable app banners

chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.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.browser.banners;
 
 import android.test.suitebuilder.annotation.MediumTest;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.text.TextUtils;
 import android.view.View;
 import android.widget.TextView;
 
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.Feature;
+import org.chromium.chrome.ChromeSwitches;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.infobar.AnimationHelper;
 import org.chromium.chrome.browser.infobar.AppBannerInfoBar;
 import org.chromium.chrome.browser.infobar.InfoBar;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
 import org.chromium.chrome.shell.ChromeShellTestBase;
 import org.chromium.chrome.test.util.TestHttpServerClient;
 import org.chromium.chrome.test.util.browser.TabLoadObserver;
 import org.chromium.content.browser.test.util.Criteria;
@@ skipping 99 matching lines @@
                 if (!(infobars.get(0) instanceof AppBannerInfoBar)) return false;
 
                 TextView textView =
                         (TextView) infobars.get(0).getContentWrapper().findViewById(R.id.app_name);
                 if (textView == null) return false;
                 return TextUtils.equals(textView.getText(), APP_TITLE);
             }
         });
     }
 
+    @CommandLineFlags.Add(ChromeSwitches.ENABLE_APP_INSTALL_ALERTS)
     @SmallTest
     @Feature({"AppBanners"})
     public void testBannerAppears() throws Exception {
         // Visit a site that requests a banner.
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(1));
         assertTrue(waitUntilNoInfoBarsExist());
 
         // Indicate a day has passed, then revisit the page.
         AppBannerManager.setTimeDeltaForTesting(1);
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(2));
         assertTrue(waitUntilAppBannerInfoBarAppears());
     }
 
+    @CommandLineFlags.Add(ChromeSwitches.ENABLE_APP_INSTALL_ALERTS)
     @MediumTest
     @Feature({"AppBanners"})
     public void testBannerAppearsThenDoesNotAppearAgainForMonths() throws Exception {
         // Visit a site that requests a banner.
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(1));
         assertTrue(waitUntilNoInfoBarsExist());
 
         // Indicate a day has passed, then revisit the page.
@@ skipping 30 matching lines @@
         assertTrue(waitUntilAppDetailsRetrieved(6));
         assertTrue(waitUntilNoInfoBarsExist());
 
         AppBannerManager.setTimeDeltaForTesting(62);
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(7));
         assertTrue(waitUntilAppBannerInfoBarAppears());
     }
 
+    @CommandLineFlags.Add(ChromeSwitches.ENABLE_APP_INSTALL_ALERTS)
     @MediumTest
     @Feature({"AppBanners"})
     public void testBlockedBannerDoesNotAppearAgainForMonths() throws Exception {
         // Visit a site that requests a banner.
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(1));
         assertTrue(waitUntilNoInfoBarsExist());
 
         // Indicate a day has passed, then revisit the page.
@@ skipping 37 matching lines @@
         assertTrue(waitUntilAppDetailsRetrieved(5));
         assertTrue(waitUntilNoInfoBarsExist());
 
         AppBannerManager.setTimeDeltaForTesting(92);
         assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                 new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
         assertTrue(waitUntilAppDetailsRetrieved(6));
         assertTrue(waitUntilAppBannerInfoBarAppears());
     }
 
+    @CommandLineFlags.Add(ChromeSwitches.ENABLE_APP_INSTALL_ALERTS)
     @MediumTest
     @Feature({"AppBanners"})
     public void testBitmapFetchersCanOverlapWithoutCrashing() throws Exception {
         // Visit a site that requests a banner rapidly and repeatedly.
         for (int i = 1; i <= 10; i++) {
             assertTrue(CriteriaHelper.pollForUIThreadCriteria(
                     new TabLoadObserver(getActivity().getActiveTab(), NATIVE_APP_URL)));
 
             final Integer iteration = Integer.valueOf(i);
             assertTrue(CriteriaHelper.pollForUIThreadCriteria(new Criteria() {
                 @Override
                 public boolean isSatisfied() {
                     return mDetailsDelegate.mNumRetrieved == iteration;
                 }
             }));
         }
     }
 }