[Android] Add In-product help for PWA install menu.

Bug: 1135551
Change-Id: If6eb558fd23c74b16479a4f23b4327b522a828e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2442691Reviewed-by: David Trainor <dtrainor@chromium.org>
Reviewed-by: Peter Conn <peconn@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Commit-Queue: Finnur Thorarinsson <finnur@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816216}

chrome/android/chrome_java_sources.gni

@@ -138,6 +138,9 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeBackgroundTaskFactory.java",
   "java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeNativeBackgroundTaskDelegate.java",
   "java/src/org/chromium/chrome/browser/background_task_scheduler/ProxyNativeTask.java",
+  "java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpController.java",
+  "java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpControllerFactory.java",
+  "java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpControllerProvider.java",
   "java/src/org/chromium/chrome/browser/banners/AppBannerManager.java",
   "java/src/org/chromium/chrome/browser/banners/AppData.java",
   "java/src/org/chromium/chrome/browser/banners/AppDetailsDelegate.java",

chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpController.java

+// Copyright 2020 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.app.Activity;
+import android.os.Handler;
+import android.view.View;
+
+import org.chromium.base.UnownedUserData;
+import org.chromium.base.supplier.Supplier;
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.feature_engagement.TrackerFactory;
+import org.chromium.chrome.browser.ui.appmenu.AppMenuHandler;
+import org.chromium.chrome.browser.user_education.IPHCommandBuilder;
+import org.chromium.chrome.browser.user_education.UserEducationHelper;
+import org.chromium.components.feature_engagement.FeatureConstants;
+
+/**
+ * This class is responsible for managing the in-product help for the PWA app banners.
+ */
+public class AppBannerInProductHelpController implements UnownedUserData {
+    private final Activity mActivity;
+    private final AppMenuHandler mAppMenuHandler;
+    private final Supplier<View> mMenuButtonView;
+    private final Handler mHandler = new Handler();
+    private final UserEducationHelper mUserEducationHelper;
+
+    /**
+     * Constructs an AppBannerInProductHelpController.
+     * @param activity The current activity.
+     * @param appMenuHandler The app menu containing the menu entry to highlight.
+     * @param menuButtonView The menu button view to anchor the bubble to.
+     */
+    public AppBannerInProductHelpController(
+            Activity activity, AppMenuHandler appMenuHandler, Supplier<View> menuButtonView) {
+        mActivity = activity;
+        mAppMenuHandler = appMenuHandler;
+        mMenuButtonView = menuButtonView;
+        mUserEducationHelper =
+                new UserEducationHelper(mActivity, mHandler, TrackerFactory::getTrackerForProfile);
+    }
+
+    /**
+     * Makes an asynchronous request to show the in-product help, anchored to app menu.
+     */
+    public void requestInProductHelp() {
+        IPHCommandBuilder builder = new IPHCommandBuilder(mActivity.getResources(),
+                FeatureConstants.PWA_INSTALL_AVAILABLE_FEATURE,
+                R.string.iph_pwa_install_available_text, R.string.iph_pwa_install_available_text);
+        mUserEducationHelper.requestShowIPH(
+                builder.setAnchorView(mMenuButtonView.get())
+                        .setOnShowCallback(this::turnOnHighlightForMenu)
+                        .setOnDismissCallback(this::turnOffHighlightForMenu)
+                        .build());
+    }
+
+    private void turnOnHighlightForMenu() {
+        mAppMenuHandler.setMenuHighlight(R.id.add_to_homescreen_id, true);
+    }
+
+    private void turnOffHighlightForMenu() {
+        mAppMenuHandler.clearMenuHighlight();
+    }
+}

chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpControllerFactory.java

+// Copyright 2020 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.app.Activity;
+import android.view.View;
+
+import org.chromium.base.supplier.Supplier;
+import org.chromium.chrome.browser.ui.appmenu.AppMenuHandler;
+import org.chromium.ui.base.WindowAndroid;
+
+/**
+ * A factory for producing a {@link AppBannerInProductHelpController}.
+ */
+public class AppBannerInProductHelpControllerFactory {
+    public static AppBannerInProductHelpController createAppBannerInProductHelpController(
+            Activity activity, AppMenuHandler appMenuHandler, Supplier<View> menuButtonView) {
+        return new AppBannerInProductHelpController(activity, appMenuHandler, menuButtonView);
+    }
+
+    public static void attach(
+            WindowAndroid windowAndroid, AppBannerInProductHelpController controller) {
+        AppBannerInProductHelpControllerProvider.attach(windowAndroid, controller);
+    }
+
+    public static void detach(AppBannerInProductHelpController controller) {
+        AppBannerInProductHelpControllerProvider.detach(controller);
+    }
+}

chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerInProductHelpControllerProvider.java

+// Copyright 2020 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 org.chromium.base.UnownedUserDataKey;
+import org.chromium.ui.base.WindowAndroid;
+
+/**
+ * This class manages the details associated with binding a {@link AppBannerInProductHelpController}
+ * to user data on a {@link WindowAndroid}.
+ */
+public class AppBannerInProductHelpControllerProvider {
+    /** The key used to bind the controller to the unowned data host. */
+    private static final UnownedUserDataKey<AppBannerInProductHelpController> KEY =
+            new UnownedUserDataKey<>(AppBannerInProductHelpController.class);
+
+    /**
+     * Get the shared {@link AppBannerInProductHelpController} from the provided {@link
+     * WindowAndroid}.
+     * @param windowAndroid The window to pull the controller from.
+     * @return A shared instance of a {@link AppBannerInProductHelpController}.
+     */
+    public static AppBannerInProductHelpController from(WindowAndroid windowAndroid) {
+        return KEY.retrieveDataFromHost(windowAndroid.getUnownedUserDataHost());
+    }
+
+    static void attach(WindowAndroid windowAndroid, AppBannerInProductHelpController controller) {
+        KEY.attachToHost(windowAndroid.getUnownedUserDataHost(), controller);
+    }
+
+    static void detach(AppBannerInProductHelpController controller) {
+        KEY.detachFromAllHosts(controller);
+    }
+}

chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java

@@ -17,9 +17,14 @@ import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.NativeMethods;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ShortcutHelper;
+import org.chromium.chrome.browser.feature_engagement.TrackerFactory;
+import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.vr.VrModuleProvider;
+import org.chromium.components.feature_engagement.FeatureConstants;
+import org.chromium.components.feature_engagement.Tracker;
 import org.chromium.content_public.browser.WebContents;
+import org.chromium.ui.base.WindowAndroid;
 
 /**
  * Manages an AppBannerInfoBar for a Tab.
@@ -129,6 +134,31 @@ public class AppBannerManager {
                 createAppDetailsObserver(), url, packageName, referrer, iconSizeInPx);
     }
 
+    /**
+     * Request to show the in-product help for installing a PWA.
+     * @param webContents The current WebContents.
+     * @return An error message, if unsuccessful. Blank if the request was made.
+     */
+    @CalledByNative
+    private String showInProductHelp(WebContents webContents) {
+        // Consult the tracker to see if the IPH can be shown.
+        Tracker tracker = TrackerFactory.getTrackerForProfile(Profile.fromWebContents(webContents));
+        if (!tracker.wouldTriggerHelpUI(FeatureConstants.PWA_INSTALL_AVAILABLE_FEATURE)) {
+            // Tracker replied that the request to show will not be honored. Return whether the
+            // limit of how often to show has been exceeded.
+            return "Trigger state: "
+                    + tracker.getTriggerState(FeatureConstants.PWA_INSTALL_AVAILABLE_FEATURE);
+        }
+
+        WindowAndroid window = webContents.getTopLevelNativeWindow();
+        if (window == null) return "No window";
+        AppBannerInProductHelpController controller =
+                AppBannerInProductHelpControllerProvider.from(window);
+        if (controller == null) return "No controller";
+        controller.requestInProductHelp();
+        return "";
+    }
+
     private AppDetailsDelegate.Observer createAppDetailsObserver() {
         return new AppDetailsDelegate.Observer() {
             /**

chrome/android/java/src/org/chromium/chrome/browser/tabbed_mode/TabbedRootUiCoordinator.java

@@ -19,6 +19,8 @@ import org.chromium.base.supplier.Supplier;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ActivityTabProvider;
 import org.chromium.chrome.browser.app.ChromeActivity;
+import org.chromium.chrome.browser.banners.AppBannerInProductHelpController;
+import org.chromium.chrome.browser.banners.AppBannerInProductHelpControllerFactory;
 import org.chromium.chrome.browser.bookmarks.BookmarkBridge;
 import org.chromium.chrome.browser.browser_controls.BrowserControlsSizer;
 import org.chromium.chrome.browser.compositor.bottombar.ephemeraltab.EphemeralTabCoordinator;
@@ -77,6 +79,7 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
     private OfflineIndicatorInProductHelpController mOfflineIndicatorInProductHelpController;
     private UrlFocusChangeListener mUrlFocusChangeListener;
     private @Nullable ToolbarButtonInProductHelpController mToolbarButtonInProductHelpController;
+    private AppBannerInProductHelpController mAppBannerInProductHelpController;
     private ObservableSupplier<Boolean> mIntentWithEffect;
     private Callback<Boolean> mIntentWithEffectObserver;
     private HistoryNavigationCoordinator mHistoryNavigationCoordinator;
@@ -152,6 +155,10 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
             mToolbarButtonInProductHelpController.destroy();
         }
 
+        if (mAppBannerInProductHelpController != null) {
+            AppBannerInProductHelpControllerFactory.detach(mAppBannerInProductHelpController);
+        }
+
         if (mHistoryNavigationCoordinator != null) {
             mHistoryNavigationCoordinator.destroy();
             mHistoryNavigationCoordinator = null;
@@ -319,6 +326,13 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
                     new OfflineIndicatorInProductHelpController(mActivity, mToolbarManager,
                             mAppMenuCoordinator.getAppMenuHandler(), mStatusIndicatorCoordinator);
         }
+
+        mAppBannerInProductHelpController =
+                AppBannerInProductHelpControllerFactory.createAppBannerInProductHelpController(
+                        mActivity, mAppMenuCoordinator.getAppMenuHandler(),
+                        () -> mActivity.getToolbarManager().getMenuButtonView());
+        AppBannerInProductHelpControllerFactory.attach(
+                mActivity.getWindowAndroid(), mAppBannerInProductHelpController);
     }
 
     private void initStatusIndicatorCoordinator(LayoutManager layoutManager) {

chrome/browser/android/webapps/add_to_homescreen_mediator.cc

@@ -16,7 +16,10 @@
 #include "chrome/browser/banners/app_banner_manager_android.h"
 #include "chrome/browser/banners/app_banner_metrics.h"
 #include "chrome/browser/banners/app_banner_settings_helper.h"
+#include "chrome/browser/feature_engagement/tracker_factory.h"
 #include "chrome/browser/installable/installable_metrics.h"
+#include "components/feature_engagement/public/event_constants.h"
+#include "components/feature_engagement/public/tracker.h"
 #include "components/url_formatter/elide_url.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/gfx/android/java_bitmap.h"
@@ -209,6 +212,14 @@ void AddToHomescreenMediator::OnDataAvailable(const ShortcutInfo& info,
   }
   UMA_HISTOGRAM_ENUMERATION("Webapp.AddToHomescreenMediator.AppTypeToMenuEntry",
                             entry, AppTypeToMenuEntry::kAppTypeFinalEntry);
+
+  if (is_webapk) {
+    DVLOG(2) << "Sending event: IPH used for Installing PWA";
+    feature_engagement::Tracker* tracker =
+        feature_engagement::TrackerFactory::GetForBrowserContext(
+            data_fetcher_->web_contents()->GetBrowserContext());
+    tracker->NotifyEvent(feature_engagement::events::kPwaInstallMenuSelected);
+  }
 }
 
 void AddToHomescreenMediator::RecordEventForAppMenu(

chrome/browser/banners/app_banner_manager_android.cc

@@ -8,6 +8,7 @@
 #include "base/android/jni_string.h"
 #include "base/bind.h"
 #include "base/feature_list.h"
+#include "base/metrics/field_trial_params.h"
 #include "base/optional.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
@@ -24,10 +25,14 @@
 #include "chrome/browser/android/webapps/add_to_homescreen_params.h"
 #include "chrome/browser/banners/app_banner_metrics.h"
 #include "chrome/browser/banners/app_banner_settings_helper.h"
+#include "chrome/browser/feature_engagement/tracker_factory.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/installable/installable_metrics.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/common/channel_info.h"
 #include "chrome/common/chrome_features.h"
+#include "components/feature_engagement/public/feature_constants.h"
+#include "components/feature_engagement/public/tracker.h"
 #include "components/infobars/core/infobar.h"
 #include "components/infobars/core/infobar_delegate.h"
 #include "components/version_info/channel.h"
@@ -44,6 +49,14 @@ namespace {
 
 constexpr char kPlatformPlay[] = "play";
 
+// The key to look up what the minimum engagement score is for showing the
+// in-product help.
+constexpr char kMinEngagementForIphKey[] = "x_min_engagement_for_iph";
+
+// The key to look up whether the in-product help should replace the toolbar or
+// complement it.
+constexpr char kIphReplacesToolbar[] = "x_iph_replaces_toolbar";
+
 // Whether to ignore the Chrome channel in QueryNativeApp() for testing.
 bool gIgnoreChromeChannelForTesting = false;
 
@@ -457,7 +470,52 @@ base::string16 AppBannerManagerAndroid::GetAppName() const {
   return native_app_title_;
 }
 
+bool AppBannerManagerAndroid::MaybeShowInProductHelp() const {
+  if (!web_contents()) {
+    DVLOG(2) << "IPH for PWA aborted: null WebContents";
+    return false;
+  }
+
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents()->GetBrowserContext());
+  if (!profile) {
+    DVLOG(2) << "IPH for PWA aborted: unable to obtain profile";
+    return false;
+  }
+
+  double last_engagement_score =
+      GetSiteEngagementService()->GetScore(validated_url_);
+  int min_engagement = base::GetFieldTrialParamByFeatureAsInt(
+      feature_engagement::kIPHPwaInstallAvailableFeature,
+      kMinEngagementForIphKey, 0);
+  if (last_engagement_score < min_engagement) {
+    DVLOG(2) << "IPH for PWA aborted: Engagement score too low: "
+             << last_engagement_score << " < " << min_engagement;
+    return false;
+  }
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  std::string error_message = base::android::ConvertJavaStringToUTF8(
+      Java_AppBannerManager_showInProductHelp(
+          env, java_banner_manager_, web_contents()->GetJavaWebContents()));
+  if (!error_message.empty()) {
+    DVLOG(2) << "IPH for PWA showing aborted. " << error_message;
+    return false;
+  }
+
+  DVLOG(2) << "Showing IPH.";
+  return true;
+}
+
 void AppBannerManagerAndroid::MaybeShowAmbientBadge() {
+  if (MaybeShowInProductHelp() &&
+      base::GetFieldTrialParamByFeatureAsBool(
+          feature_engagement::kIPHPwaInstallAvailableFeature,
+          kIphReplacesToolbar, false)) {
+    DVLOG(2) << "Install infobar overridden by IPH, as per experiment.";
+    return;
+  }
+
   if (!base::FeatureList::IsEnabled(features::kInstallableAmbientBadgeInfoBar))
     return;
 

chrome/browser/banners/app_banner_manager_android.h

@@ -132,6 +132,11 @@ class AppBannerManagerAndroid
   // Returns the appropriate app name based on whether we have a native/web app.
   base::string16 GetAppName() const override;
 
+  // Shows the in-product help if possible and returns true when a request to
+  // show it was made, but false if conditions (e.g. engagement score) for
+  // showing where not deemed adequate.
+  bool MaybeShowInProductHelp() const;
+
   // Hides the ambient badge if it is showing.
   void HideAmbientBadge();
 

chrome/browser/ui/android/strings/android_chrome_strings.grd

@@ -2165,6 +2165,9 @@ To change this setting, <ph name="BEGIN_LINK">&lt;resetlink&gt;</ph>reset sync<p
       <message name="IDS_NOTIFICATION_WEBAPK_INSTALLED" desc="Indicates that a WebAPK has been successfully added to Home screen.">
         Added to Home screen
       </message>
+      <message name="IDS_IPH_PWA_INSTALL_AVAILABLE_TEXT" desc="The in-product-help message for PWAs that can be installed to the device.">
+        Install this app
+      </message>
 
       <!-- Page info popup -->
       <message name="IDS_PAGE_INFO_CONNECTION_OFFLINE" desc="Message to display in the page info bubble when viewing and offline page.">

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_IPH_PWA_INSTALL_AVAILABLE_TEXT.png.sha1

+3d9d82db5402d55d2766f542b7f321bfef1cfa60
\ No newline at end of file

components/feature_engagement/public/android/java/src/org/chromium/components/feature_engagement/FeatureConstants.java

@@ -41,7 +41,8 @@ import java.lang.annotation.RetentionPolicy;
         FeatureConstants.HOMEPAGE_PROMO_CARD_FEATURE, FeatureConstants.FEED_HEADER_MENU_FEATURE,
         FeatureConstants.CHROME_REENGAGEMENT_NOTIFICATION_1_FEATURE,
         FeatureConstants.CHROME_REENGAGEMENT_NOTIFICATION_2_FEATURE,
-        FeatureConstants.CHROME_REENGAGEMENT_NOTIFICATION_3_FEATURE})
+        FeatureConstants.CHROME_REENGAGEMENT_NOTIFICATION_3_FEATURE,
+        FeatureConstants.PWA_INSTALL_AVAILABLE_FEATURE})
 @Retention(RetentionPolicy.SOURCE)
 public @interface FeatureConstants {
     String DOWNLOAD_PAGE_FEATURE = "IPH_DownloadPage";
@@ -203,4 +204,9 @@ public @interface FeatureConstants {
      * An IPH feature to show the third re-engagement notification.
      */
     String CHROME_REENGAGEMENT_NOTIFICATION_3_FEATURE = "IPH_ChromeReengagementNotification3";
+
+    /**
+     * An IPH feature to inform users that installing a PWA is an option.
+     */
+    String PWA_INSTALL_AVAILABLE_FEATURE = "IPH_PwaInstallAvailable";
 }

components/feature_engagement/public/event_constants.cc

@@ -45,6 +45,10 @@ const char kBottomToolbarOpened[] = "bottom_toolbar_opened";
 const char kDiscoverFeedLoaded[] = "discover_feed_loaded";
 #endif  // defined(OS_IOS)
 
+#if defined(OS_ANDROID)
+const char kPwaInstallMenuSelected[] = "pwa_install_menu_clicked";
+#endif  // defined(OS_ANDROID)
+
 }  // namespace events
 
 }  // namespace feature_engagement

components/feature_engagement/public/event_constants.h

@@ -80,6 +80,12 @@ extern const char kBottomToolbarOpened[];
 extern const char kDiscoverFeedLoaded[];
 #endif  // defined(OS_IOS)
 
+// Android.
+#if defined(OS_ANDROID)
+// The user has explicitly used the Install menu item under the App Menu.
+extern const char kPwaInstallMenuSelected[];
+#endif  // defined(OS_ANDROID)
+
 }  // namespace events
 
 }  // namespace feature_engagement

components/feature_engagement/public/feature_constants.cc

@@ -121,6 +121,8 @@ const base::Feature kIPHChromeReengagementNotification2Feature{
     "IPH_ChromeReengagementNotification2", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kIPHChromeReengagementNotification3Feature{
     "IPH_ChromeReengagementNotification3", base::FEATURE_DISABLED_BY_DEFAULT};
+const base::Feature kIPHPwaInstallAvailableFeature{
+    "IPH_PwaInstallAvailable", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // defined(OS_ANDROID)
 
 #if defined(OS_IOS)

components/feature_engagement/public/feature_constants.h

@@ -79,6 +79,7 @@ extern const base::Feature kIPHFeedHeaderMenuFeature;
 extern const base::Feature kIPHChromeReengagementNotification1Feature;
 extern const base::Feature kIPHChromeReengagementNotification2Feature;
 extern const base::Feature kIPHChromeReengagementNotification3Feature;
+extern const base::Feature kIPHPwaInstallAvailableFeature;
 #endif  // defined(OS_ANDROID)
 
 #if defined(OS_IOS)

components/feature_engagement/public/feature_list.cc

@@ -46,6 +46,7 @@ const base::Feature* const kAllFeatures[] = {
     &kIPHKeyboardAccessoryPasswordFillingFeature,
     &kIPHKeyboardAccessoryPaymentFillingFeature,
     &kIPHPreviewsOmniboxUIFeature,
+    &kIPHPwaInstallAvailableFeature,
     &kIPHQuietNotificationPromptsFeature,
     &kIPHTabGroupsQuicklyComparePagesFeature,
     &kIPHTabGroupsTapToSeeAnotherTabFeature,

components/feature_engagement/public/feature_list.h

@@ -94,6 +94,8 @@ DEFINE_VARIATION_PARAM(kIPHKeyboardAccessoryPasswordFillingFeature,
 DEFINE_VARIATION_PARAM(kIPHKeyboardAccessoryPaymentFillingFeature,
                        "IPH_KeyboardAccessoryPaymentFilling");
 DEFINE_VARIATION_PARAM(kIPHPreviewsOmniboxUIFeature, "IPH_PreviewsOmniboxUI");
+DEFINE_VARIATION_PARAM(kIPHPwaInstallAvailableFeature,
+                       "IPH_PwaInstallAvailableFeature");
 DEFINE_VARIATION_PARAM(kIPHQuietNotificationPromptsFeature,
                        "IPH_QuietNotificationPrompts");
 DEFINE_VARIATION_PARAM(kIPHTabGroupsQuicklyComparePagesFeature,
@@ -184,6 +186,7 @@ constexpr flags_ui::FeatureEntry::FeatureVariation
         VARIATION_ENTRY(kIPHKeyboardAccessoryPasswordFillingFeature),
         VARIATION_ENTRY(kIPHKeyboardAccessoryPaymentFillingFeature),
         VARIATION_ENTRY(kIPHPreviewsOmniboxUIFeature),
+        VARIATION_ENTRY(kIPHPwaInstallAvailableFeature),
         VARIATION_ENTRY(kIPHQuietNotificationPromptsFeature),
         VARIATION_ENTRY(kIPHTabGroupsQuicklyComparePagesFeature),
         VARIATION_ENTRY(kIPHTabGroupsTapToSeeAnotherTabFeature),