Record "track prices on tabs" in SharedPreferences

This CL records whether users turn on the feature "track prices on tabs"
and updates the checkbox on the tab switcher menu.

Bug: 1146636
Change-Id: I7dbdddb287a30b47298425eda79778433caa2316
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2524961Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Reviewed-by: Yue Zhang <yuezhanggg@chromium.org>
Commit-Queue: Zhiyuan Cai <zhiyuancai@google.com>
Cr-Commit-Position: refs/heads/master@{#828190}

chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/PriceTrackingUtilities.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.tasks.tab_management;
+
+import org.chromium.chrome.browser.preferences.ChromePreferenceKeys;
+import org.chromium.chrome.browser.preferences.SharedPreferencesManager;
+
+/**
+ * A class to handle whether price tracking-related features are turned on by users,
+ * including tracking prices on tabs and price drop alerts.
+ * Whether the feature is available is controlled by {@link
+ * TabUiFeatureUtilities#ENABLE_PRICE_TRACKING}.
+ */
+public class PriceTrackingUtilities {
+    private static final String TRACK_PRICES_ON_TABS =
+            ChromePreferenceKeys.PRICE_TRACKING_TRACK_PRICES_ON_TABS;
+
+    private static final SharedPreferencesManager SHARED_PREFERENCES_MANAGER =
+            SharedPreferencesManager.getInstance();
+
+    /**
+     * Update SharedPreferences when users turn on/off the feature tracking prices on tabs.
+     */
+    public static void flipTrackPricesOnTabs() {
+        final boolean enableTrackPricesOnTabs =
+                SHARED_PREFERENCES_MANAGER.readBoolean(TRACK_PRICES_ON_TABS, false);
+        SHARED_PREFERENCES_MANAGER.writeBoolean(TRACK_PRICES_ON_TABS, !enableTrackPricesOnTabs);
+    }
+
+    /**
+     * @return Whether the track prices on tabs is turned on by users.
+     */
+    public static boolean isTrackPricesOnTabsEnabled() {
+        return SHARED_PREFERENCES_MANAGER.readBoolean(TRACK_PRICES_ON_TABS, false);
+    }
+}

chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/TabSwitcherCoordinator.java

@@ -132,6 +132,9 @@ public class TabSwitcherCoordinator
                                         .getTabsWithNoOtherRelatedTabs());
                         RecordUserAction.record("MobileMenuGroupTabs");
                         return true;
+                    } else if (id == R.id.track_prices_id || id == R.id.track_prices_check_id) {
+                        PriceTrackingUtilities.flipTrackPricesOnTabs();
+                        return true;
                     }
                     return false;
                 }

chrome/android/features/tab_ui/tab_management_java_sources.gni

@@ -13,6 +13,7 @@ public_tab_management_java_sources = [
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/pseudotab/TabAttributeCache.java",
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_groups/EmptyTabGroupModelFilterObserver.java",
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_groups/TabGroupModelFilter.java",
+  "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/PriceTrackingUtilities.java",
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/TabGroupUi.java",
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/TabManagementDelegate.java",
   "//chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/TabManagementModuleProvider.java",

chrome/android/java/src/org/chromium/chrome/browser/app/appmenu/AppMenuPropertiesDelegateImpl.java

@@ -52,6 +52,7 @@ import org.chromium.chrome.browser.share.ShareHelper;
 import org.chromium.chrome.browser.share.ShareUtils;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
+import org.chromium.chrome.browser.tasks.tab_management.PriceTrackingUtilities;
 import org.chromium.chrome.browser.tasks.tab_management.TabUiFeatureUtilities;
 import org.chromium.chrome.browser.toolbar.ToolbarManager;
 import org.chromium.chrome.browser.translate.TranslateUtils;
@@ -577,6 +578,10 @@ public class AppMenuPropertiesDelegateImpl implements AppMenuPropertiesDelegate
             if (item.getItemId() == R.id.track_prices_row_menu_id) {
                 item.setVisible(isPriceTrackingVisible);
                 item.setEnabled(isPriceTrackingEnabled);
+                if (isPriceTrackingVisible) {
+                    menu.findItem(R.id.track_prices_check_id)
+                            .setChecked(PriceTrackingUtilities.isTrackPricesOnTabsEnabled());
+                }
             }
             if (item.getItemId() == R.id.close_all_tabs_menu_id) {
                 boolean hasTabs = mTabModelSelector.getTotalTabCount() > 0;

chrome/browser/preferences/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceKeys.java

@@ -531,6 +531,12 @@ public final class ChromePreferenceKeys {
     public static final String PREFETCH_NOTIFICATION_TIME = "prefetch_notification_shown_time";
     public static final String PREFETCH_OFFLINE_COUNTER = "prefetch_notification_offline_counter";
 
+    /**
+     * Whether users turn on the feature track prices on tabs.
+     */
+    public static final String PRICE_TRACKING_TRACK_PRICES_ON_TABS =
+            "Chrome.PriceTracking.TrackPricesOnTabs";
+
     public static final String PRIVACY_METRICS_REPORTING = "metrics_reporting";
     public static final String PRIVACY_METRICS_IN_SAMPLE = "in_metrics_sample";
     public static final String PRIVACY_NETWORK_PREDICTIONS = "network_predictions";
@@ -831,6 +837,7 @@ public final class ChromePreferenceKeys {
                 IMAGE_DESCRIPTIONS_JUST_ONCE_COUNT,
                 IMAGE_DESCRIPTIONS_DONT_ASK_AGAIN,
                 PERSISTENT_OFFLINE_CONTENT_AVAILABILITY_STATUS,
+                PRICE_TRACKING_TRACK_PRICES_ON_TABS,
                 PROMO_IS_DISMISSED.pattern(),
                 PROMO_TIMES_SEEN.pattern(),
                 SETTINGS_SAFETY_CHECK_LAST_RUN_TIMESTAMP,