diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 78f4e22..4fa3964 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -2365,26 +2365,6 @@
             android:enabled="false"
             android:taskAffinity="com.android.settings"
             android:parentActivityName="Settings">
-            <!-- TODO(b/70950124): add shortcut intent-filter -->
-            <intent-filter android:priority="1">
-                <action android:name="android.settings.DATA_USAGE_SETTINGS" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
-            <intent-filter android:priority="10">
-                <action android:name="com.android.settings.action.SETTINGS" />
-            </intent-filter>
-            <meta-data android:name="com.android.settings.category"
-                android:value="com.android.settings.category.ia.wireless" />
-            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
-                android:value="com.android.settings.datausage.DataUsageSummary" />
-        </activity>
-
-        <activity
-            android:name="Settings$DataUsageSummaryLegacyActivity"
-            android:label="@string/data_usage_summary_title"
-            android:icon="@drawable/ic_settings_data_usage"
-            android:taskAffinity="com.android.settings"
-            android:parentActivityName="Settings">
             <intent-filter android:priority="1">
                 <action android:name="android.settings.DATA_USAGE_SETTINGS" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -2398,11 +2378,10 @@
                 <action android:name="com.android.settings.action.SETTINGS" />
             </intent-filter>
             <meta-data android:name="com.android.settings.category"
-                       android:value="com.android.settings.category.ia.wireless" />
+                android:value="com.android.settings.category.ia.wireless" />
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
-                       android:value="com.android.settings.datausage.DataUsageSummaryLegacy" />
+                android:value="com.android.settings.datausage.DataUsageSummary" />
         </activity>
-
         <activity
             android:name="Settings$MobileDataUsageListActivity"
             android:label="@string/cellular_data_usage"
diff --git a/res/layout/preference_dropdown_material_settings.xml b/res/layout/preference_dropdown_material_settings.xml
deleted file mode 100644
index a3f5ab9..0000000
--- a/res/layout/preference_dropdown_material_settings.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  Copyright (C) 2016 The Android Open Source Project
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-  -->
-
-
-<!-- Based off frameworks/base/core/res/res/layout/preference_dropdown_material.xml
-     except that icon space in this layout is always reserved -->
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <Spinner
-        android:id="@+id/spinner"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="@dimen/preference_no_icon_padding_start"
-        android:visibility="invisible" />
-
-    <include layout="@layout/preference_material"/>
-
-</FrameLayout>
\ No newline at end of file
diff --git a/res/menu/data_usage.xml b/res/menu/data_usage.xml
deleted file mode 100644
index 9fe6b60..0000000
--- a/res/menu/data_usage.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2011 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-    <item
-        android:id="@+id/data_usage_menu_cellular_networks"
-        android:title="@string/data_usage_menu_cellular_networks" />
-</menu>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index eba90fd..51ec590 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -6015,8 +6015,6 @@
     <string name="data_usage_menu_auto_sync">Auto-sync data</string>
     <!-- Title for menu option to show details for all SIM cards. [CHAR LIMIT=26] -->
     <string name="data_usage_menu_sim_cards">SIM cards</string>
-    <!-- Title for menu option to show details for all cellular networks. [CHAR LIMIT=26] -->
-    <string name="data_usage_menu_cellular_networks">Mobile networks</string>
     <!-- Summary String for Cellular data enable toggle. [CHAR LIMIT=33] -->
     <string name="data_usage_cellular_data_summary">Paused at limit</string>
 
@@ -9169,12 +9167,6 @@
     <!-- Format string for amount of ethernet data used [CHAR LIMIT=30] -->
     <string name="ethernet_data_template"><xliff:g id="amount" example="1 GB">^1</xliff:g> ethernet data</string>
 
-    <!-- Format for a summary describing the amount of data before the user is warned [CHAR LIMIT=NONE] -->
-    <string name="cell_warning_only"><xliff:g name="amount" example="1 GB">%1$s</xliff:g> Data warning</string>
-
-    <!-- Format for a summary describing the amount of data before the user is warned or limited [CHAR LIMIT=NONE] -->
-    <string name="cell_warning_and_limit"><xliff:g name="amount" example="1 GB">%1$s</xliff:g> Data warning / <xliff:g name="amount" example="2 GB">%2$s</xliff:g> Data limit</string>
-
     <!-- Title of button and screen for billing cycle preferences [CHAR LIMIT=40] -->
     <string name="billing_cycle">Data warning &amp; limit</string>
 
diff --git a/res/values/styles_preference.xml b/res/values/styles_preference.xml
index 6b632ca..a55f5ca 100644
--- a/res/values/styles_preference.xml
+++ b/res/values/styles_preference.xml
@@ -20,27 +20,27 @@
 <resources>
 
     <!-- Fragment style -->
-    <style name="SettingsPreferenceFragmentStyle" parent="@style/PreferenceFragmentStyle.SettingsBase">
+    <style name="SettingsPreferenceFragmentStyle" parent="@style/PreferenceFragment.Material">
         <item name="android:layout">@layout/preference_list_fragment</item>
     </style>
 
-    <style name="ApnPreference" parent="Preference.SettingsBase">
+    <style name="ApnPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/apn_preference_layout</item>
     </style>
 
-    <style name="SettingsSeekBarPreference" parent="Preference.SettingsBase">
+    <style name="SettingsSeekBarPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/preference_widget_seekbar_settings</item>
     </style>
 
-    <style name="SyncSwitchPreference" parent="Preference.SettingsBase">
+    <style name="SyncSwitchPreference" parent="@style/Preference.Material">
         <item name="android:widgetLayout">@layout/preference_widget_sync_toggle</item>
     </style>
 
-    <style name="TwoStateButtonPreference" parent="Preference.SettingsBase">
+    <style name="TwoStateButtonPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/two_state_button</item>
     </style>
 
-    <style name="SettingsMultiSelectListPreference" parent="Preference.SettingsBase">
+    <style name="SettingsMultiSelectListPreference" parent="@style/Preference.Material">
         <item name="android:positiveButtonText">@android:string/ok</item>
         <item name="android:negativeButtonText">@android:string/cancel</item>
     </style>
diff --git a/res/xml/data_usage_legacy.xml b/res/xml/data_usage_legacy.xml
deleted file mode 100644
index bbe908a..0000000
--- a/res/xml/data_usage_legacy.xml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2016 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<PreferenceScreen
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:settings="http://schemas.android.com/apk/res-auto"
-    android:key="data_usage_screen"
-    android:title="@string/data_usage_summary_title">
-
-    <PreferenceCategory
-        android:key="data_usage_category"
-        android:title="@string/usage">
-
-        <com.android.settings.SummaryPreference
-            android:key="status_header"
-            android:selectable="false" />
-
-        <Preference
-            android:key="limit_summary"
-            android:selectable="false"
-            settings:allowDividerBelow="true" />
-
-        <com.android.settings.datausage.DataSaverPreference
-            android:key="restrict_background_legacy"
-            android:title="@string/data_saver_title"
-            android:fragment="com.android.settings.datausage.DataSaverSummary" />
-
-    </PreferenceCategory>
-
-</PreferenceScreen>
diff --git a/res/xml/security_lockscreen_settings.xml b/res/xml/security_lockscreen_settings.xml
index a3fcaee..2cd92c5 100644
--- a/res/xml/security_lockscreen_settings.xml
+++ b/res/xml/security_lockscreen_settings.xml
@@ -31,7 +31,8 @@
 
         <com.android.settingslib.RestrictedSwitchPreference
             android:key="security_lockscreen_add_users_when_locked"
-            android:title="@string/user_add_on_lockscreen_menu" />
+            android:title="@string/user_add_on_lockscreen_menu"
+            settings:controller="com.android.settings.users.AddUserWhenLockedPreferenceController" />
 
         <com.android.settingslib.RestrictedPreference
             android:key="owner_info_settings"
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 651c3a7..0d85062 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -76,7 +76,6 @@
     public static class CryptKeeperSettingsActivity extends SettingsActivity { /* empty */ }
     public static class DeviceAdminSettingsActivity extends SettingsActivity { /* empty */ }
     public static class DataUsageSummaryActivity extends SettingsActivity { /* empty */ }
-    public static class DataUsageSummaryLegacyActivity extends SettingsActivity { /* empty */ }
     public static class MobileDataUsageListActivity extends SettingsActivity { /* empty */ }
     public static class ConfigureWifiSettingsActivity extends SettingsActivity { /* empty */ }
     public static class SavedAccessPointsSettingsActivity extends SettingsActivity { /* empty */ }
diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index 5d6ea4d..8b9b912 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -664,17 +664,9 @@
                         Settings.PowerUsageSummaryActivity.class.getName()),
                 mBatteryPresent, isAdmin) || somethingChanged;
 
-        final boolean isDataUsageSettingsV2Enabled =
-                FeatureFlagUtils.isEnabled(this, FeatureFlags.DATA_USAGE_SETTINGS_V2);
-        // Enable new data usage page if v2 enabled
         somethingChanged = setTileEnabled(changedList, new ComponentName(packageName,
                         Settings.DataUsageSummaryActivity.class.getName()),
-                Utils.isBandwidthControlEnabled() && isDataUsageSettingsV2Enabled, isAdmin)
-                || somethingChanged;
-        // Enable legacy data usage page if v2 disabled
-        somethingChanged = setTileEnabled(changedList, new ComponentName(packageName,
-                        Settings.DataUsageSummaryLegacyActivity.class.getName()),
-                Utils.isBandwidthControlEnabled() && !isDataUsageSettingsV2Enabled, isAdmin)
+                Utils.isBandwidthControlEnabled(), isAdmin)
                 || somethingChanged;
 
         somethingChanged = setTileEnabled(changedList, new ComponentName(packageName,
diff --git a/src/com/android/settings/applications/AppStateNotificationBridge.java b/src/com/android/settings/applications/AppStateNotificationBridge.java
index a96a3b1..6cf64c3 100644
--- a/src/com/android/settings/applications/AppStateNotificationBridge.java
+++ b/src/com/android/settings/applications/AppStateNotificationBridge.java
@@ -15,9 +15,13 @@
  */
 package com.android.settings.applications;
 
+import android.app.usage.IUsageStatsManager;
 import android.app.usage.UsageEvents;
 import android.app.usage.UsageStatsManager;
 import android.content.Context;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.os.UserManager;
 import android.text.format.DateUtils;
 import android.util.ArrayMap;
 import android.view.View;
@@ -25,6 +29,7 @@
 import android.widget.Switch;
 
 import com.android.settings.R;
+import com.android.settings.Utils;
 import com.android.settings.notification.NotificationBackend;
 import com.android.settingslib.applications.ApplicationsState;
 import com.android.settingslib.applications.ApplicationsState.AppEntry;
@@ -33,6 +38,7 @@
 
 import java.util.ArrayList;
 import java.util.Comparator;
+import java.util.List;
 import java.util.Map;
 
 /**
@@ -42,17 +48,24 @@
 public class AppStateNotificationBridge extends AppStateBaseBridge {
 
     private final Context mContext;
-    private UsageStatsManager mUsageStatsManager;
+    private IUsageStatsManager mUsageStatsManager;
+    protected List<Integer> mUserIds;
     private NotificationBackend mBackend;
     private static final int DAYS_TO_CHECK = 7;
 
     public AppStateNotificationBridge(Context context, ApplicationsState appState,
-            Callback callback, UsageStatsManager usageStatsManager,
-            NotificationBackend backend) {
+            Callback callback, IUsageStatsManager usageStatsManager,
+            UserManager userManager, NotificationBackend backend) {
         super(appState, callback);
         mContext = context;
         mUsageStatsManager = usageStatsManager;
         mBackend = backend;
+        mUserIds = new ArrayList<>();
+        mUserIds.add(mContext.getUserId());
+        int workUserId = Utils.getManagedProfileId(userManager, mContext.getUserId());
+        if (workUserId != UserHandle.USER_NULL) {
+            mUserIds.add(workUserId);
+        }
     }
 
     @Override
@@ -62,7 +75,8 @@
 
         final Map<String, NotificationsSentState> map = getAggregatedUsageEvents();
         for (AppEntry entry : apps) {
-            NotificationsSentState stats = map.get(entry.info.packageName);
+            NotificationsSentState stats =
+                    map.get(getKey(UserHandle.getUserId(entry.info.uid), entry.info.packageName));
             calculateAvgSentCounts(stats);
             addBlockStatus(entry, stats);
             entry.extraInfo = stats;
@@ -71,8 +85,8 @@
 
     @Override
     protected void updateExtraInfo(AppEntry entry, String pkg, int uid) {
-        Map<String, NotificationsSentState> map = getAggregatedUsageEvents();
-        NotificationsSentState stats = map.get(entry.info.packageName);
+        NotificationsSentState stats = getAggregatedUsageEvents(
+                UserHandle.getUserId(entry.info.uid), entry.info.packageName);
         calculateAvgSentCounts(stats);
         addBlockStatus(entry, stats);
         entry.extraInfo = stats;
@@ -116,18 +130,59 @@
 
         long now = System.currentTimeMillis();
         long startTime = now - (DateUtils.DAY_IN_MILLIS * DAYS_TO_CHECK);
-        UsageEvents events = mUsageStatsManager.queryEvents(startTime, now);
+        for (int userId : mUserIds) {
+            UsageEvents events = null;
+            try {
+                events = mUsageStatsManager.queryEventsForUser(
+                        startTime, now, userId, mContext.getPackageName());
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
+            if (events != null) {
+                UsageEvents.Event event = new UsageEvents.Event();
+                while (events.hasNextEvent()) {
+                    events.getNextEvent(event);
+                    NotificationsSentState stats =
+                            aggregatedStats.get(getKey(userId, event.getPackageName()));
+                    if (stats == null) {
+                        stats = new NotificationsSentState();
+                        aggregatedStats.put(getKey(userId, event.getPackageName()), stats);
+                    }
+
+                    if (event.getEventType() == UsageEvents.Event.NOTIFICATION_INTERRUPTION) {
+                        if (event.getTimeStamp() > stats.lastSent) {
+                            stats.lastSent = event.getTimeStamp();
+                        }
+                        stats.sentCount++;
+                    }
+
+                }
+            }
+        }
+        return aggregatedStats;
+    }
+
+    protected NotificationsSentState getAggregatedUsageEvents(int userId, String pkg) {
+        NotificationsSentState stats = null;
+
+        long now = System.currentTimeMillis();
+        long startTime = now - (DateUtils.DAY_IN_MILLIS * DAYS_TO_CHECK);
+        UsageEvents events = null;
+        try {
+            events = mUsageStatsManager.queryEventsForPackageForUser(
+                    startTime, now, userId, pkg, mContext.getPackageName());
+        } catch (RemoteException e) {
+            e.printStackTrace();
+        }
         if (events != null) {
             UsageEvents.Event event = new UsageEvents.Event();
             while (events.hasNextEvent()) {
                 events.getNextEvent(event);
-                NotificationsSentState stats = aggregatedStats.get(event.getPackageName());
-                if (stats == null) {
-                    stats = new NotificationsSentState();
-                    aggregatedStats.put(event.getPackageName(), stats);
-                }
 
                 if (event.getEventType() == UsageEvents.Event.NOTIFICATION_INTERRUPTION) {
+                    if (stats == null) {
+                        stats = new NotificationsSentState();
+                    }
                     if (event.getTimeStamp() > stats.lastSent) {
                         stats.lastSent = event.getTimeStamp();
                     }
@@ -136,7 +191,7 @@
 
             }
         }
-        return aggregatedStats;
+        return stats;
     }
 
     private static NotificationsSentState getNotificationsSentState(AppEntry entry) {
@@ -149,6 +204,10 @@
         return null;
     }
 
+    protected static String getKey(int userId, String pkg) {
+        return userId + "|" + pkg;
+    }
+
     public View.OnClickListener getSwitchOnClickListener(final AppEntry entry) {
         if (entry != null) {
             return v -> {
diff --git a/src/com/android/settings/applications/manageapplications/ManageApplications.java b/src/com/android/settings/applications/manageapplications/ManageApplications.java
index 2250f28..dc9214e 100644
--- a/src/com/android/settings/applications/manageapplications/ManageApplications.java
+++ b/src/com/android/settings/applications/manageapplications/ManageApplications.java
@@ -41,6 +41,7 @@
 import android.annotation.Nullable;
 import android.annotation.StringRes;
 import android.app.Activity;
+import android.app.usage.IUsageStatsManager;
 import android.app.usage.UsageStatsManager;
 import android.content.Context;
 import android.content.Intent;
@@ -48,6 +49,7 @@
 import android.content.pm.PackageItemInfo;
 import android.os.Bundle;
 import android.os.Environment;
+import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.preference.PreferenceFrameLayout;
@@ -224,7 +226,8 @@
     private View mSpinnerHeader;
     private Spinner mFilterSpinner;
     private FilterSpinnerAdapter mFilterAdapter;
-    private UsageStatsManager mUsageStatsManager;
+    private IUsageStatsManager mUsageStatsManager;
+    private UserManager mUserManager;
     private NotificationBackend mNotificationBackend;
     private ResetAppsHelper mResetAppsHelper;
     private String mVolumeUuid;
@@ -294,8 +297,9 @@
             screenTitle = R.string.change_wifi_state_title;
         } else if (className.equals(Settings.NotificationAppListActivity.class.getName())) {
             mListType = LIST_TYPE_NOTIFICATION;
-            mUsageStatsManager =
-                    (UsageStatsManager) getContext().getSystemService(Context.USAGE_STATS_SERVICE);
+            mUsageStatsManager = IUsageStatsManager.Stub.asInterface(
+                    ServiceManager.getService(Context.USAGE_STATS_SERVICE));
+            mUserManager = UserManager.get(getContext());
             mNotificationBackend = new NotificationBackend();
             mSortOrder = R.id.sort_order_recent_notification;
             screenTitle = R.string.app_notifications_title;
@@ -889,6 +893,7 @@
             if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                 mExtraInfoBridge = new AppStateNotificationBridge(mContext, mState, this,
                         manageApplications.mUsageStatsManager,
+                        manageApplications.mUserManager,
                         manageApplications.mNotificationBackend);
             } else if (mManageApplications.mListType == LIST_TYPE_USAGE_ACCESS) {
                 mExtraInfoBridge = new AppStateUsageBridge(mContext, mState, this);
diff --git a/src/com/android/settings/core/FeatureFlags.java b/src/com/android/settings/core/FeatureFlags.java
index a1bce23..006bd70 100644
--- a/src/com/android/settings/core/FeatureFlags.java
+++ b/src/com/android/settings/core/FeatureFlags.java
@@ -21,8 +21,6 @@
  */
 public class FeatureFlags {
     public static final String BATTERY_DISPLAY_APP_LIST = "settings_battery_display_app_list";
-    public static final String ZONE_PICKER_V2 = "settings_zone_picker_v2";
     public static final String BLUETOOTH_WHILE_DRIVING = "settings_bluetooth_while_driving";
-    public static final String DATA_USAGE_SETTINGS_V2 = "settings_data_usage_v2";
     public static final String AUDIO_SWITCHER_SETTINGS = "settings_audio_switcher";
 }
diff --git a/src/com/android/settings/core/gateway/SettingsGateway.java b/src/com/android/settings/core/gateway/SettingsGateway.java
index 6cf29597..a050628 100644
--- a/src/com/android/settings/core/gateway/SettingsGateway.java
+++ b/src/com/android/settings/core/gateway/SettingsGateway.java
@@ -59,7 +59,6 @@
 import com.android.settings.connecteddevice.usb.UsbDetailsFragment;
 import com.android.settings.datausage.DataUsageList;
 import com.android.settings.datausage.DataUsageSummary;
-import com.android.settings.datausage.DataUsageSummaryLegacy;
 import com.android.settings.deletionhelper.AutomaticStorageManagerSettings;
 import com.android.settings.development.DevelopmentSettingsDashboardFragment;
 import com.android.settings.deviceinfo.PrivateVolumeForget;
@@ -192,7 +191,6 @@
             SwipeUpGestureSettings.class.getName(),
             CryptKeeperSettings.class.getName(),
             DataUsageSummary.class.getName(),
-            DataUsageSummaryLegacy.class.getName(),
             DreamSettings.class.getName(),
             UserSettings.class.getName(),
             NotificationAccessSettings.class.getName(),
diff --git a/src/com/android/settings/dashboard/conditional/BackgroundDataCondition.java b/src/com/android/settings/dashboard/conditional/BackgroundDataCondition.java
index a7e160f..d5372a2 100644
--- a/src/com/android/settings/dashboard/conditional/BackgroundDataCondition.java
+++ b/src/com/android/settings/dashboard/conditional/BackgroundDataCondition.java
@@ -18,12 +18,10 @@
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.net.NetworkPolicyManager;
-import android.util.FeatureFlagUtils;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.Settings;
-import com.android.settings.core.FeatureFlags;
 
 public class BackgroundDataCondition extends Condition {
 
@@ -58,11 +56,8 @@
 
     @Override
     public void onPrimaryClick() {
-        final Class activityClass = FeatureFlagUtils.isEnabled(mManager.getContext(),
-                FeatureFlags.DATA_USAGE_SETTINGS_V2)
-                ? Settings.DataUsageSummaryActivity.class
-                : Settings.DataUsageSummaryLegacyActivity.class;
-        mManager.getContext().startActivity(new Intent(mManager.getContext(), activityClass)
+        mManager.getContext().startActivity(new Intent(mManager.getContext(),
+                Settings.DataUsageSummaryActivity.class)
                 .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
     }
 
diff --git a/src/com/android/settings/datausage/BillingCyclePreference.java b/src/com/android/settings/datausage/BillingCyclePreference.java
index 7d454a1..70a123f 100644
--- a/src/com/android/settings/datausage/BillingCyclePreference.java
+++ b/src/com/android/settings/datausage/BillingCyclePreference.java
@@ -14,24 +14,20 @@
 
 package com.android.settings.datausage;
 
-import static android.net.NetworkPolicy.CYCLE_NONE;
-
 import android.content.Context;
 import android.content.Intent;
 import android.net.NetworkTemplate;
 import android.os.Bundle;
 import android.os.RemoteException;
-import androidx.preference.Preference;
 import android.util.AttributeSet;
-import android.util.FeatureFlagUtils;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
-
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.datausage.CellDataPreference.DataStateListener;
 
+import androidx.preference.Preference;
+
 public class BillingCyclePreference extends Preference implements TemplatePreference {
 
     private NetworkTemplate mTemplate;
@@ -60,14 +56,8 @@
         mTemplate = template;
         mSubId = subId;
         mServices = services;
-        final int cycleDay = services.mPolicyEditor.getPolicyCycleDay(mTemplate);
-        if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.DATA_USAGE_SETTINGS_V2)) {
-            setSummary(null);
-        } else if (cycleDay != CYCLE_NONE) {
-            setSummary(getContext().getString(R.string.billing_cycle_fragment_summary, cycleDay));
-        } else {
-            setSummary(null);
-        }
+        setSummary(null);
+
         setIntent(getIntent());
     }
 
diff --git a/src/com/android/settings/datausage/BillingCycleSettings.java b/src/com/android/settings/datausage/BillingCycleSettings.java
index 5cdf22a..8360df8 100644
--- a/src/com/android/settings/datausage/BillingCycleSettings.java
+++ b/src/com/android/settings/datausage/BillingCycleSettings.java
@@ -14,7 +14,6 @@
 
 package com.android.settings.datausage;
 
-import static android.net.NetworkPolicy.CYCLE_NONE;
 import static android.net.NetworkPolicy.LIMIT_DISABLED;
 import static android.net.NetworkPolicy.WARNING_DISABLED;
 
@@ -27,10 +26,7 @@
 import android.net.NetworkPolicy;
 import android.net.NetworkTemplate;
 import android.os.Bundle;
-import androidx.preference.SwitchPreference;
-import androidx.preference.Preference;
 import android.text.format.Time;
-import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -41,11 +37,13 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settingslib.NetworkPolicyEditor;
 import com.android.settingslib.net.DataUsageController;
 
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
 public class BillingCycleSettings extends DataUsageBase implements
         Preference.OnPreferenceChangeListener, DataUsageEditController {
 
@@ -63,7 +61,8 @@
     private static final String KEY_BILLING_CYCLE = "billing_cycle";
     private static final String KEY_SET_DATA_WARNING = "set_data_warning";
     private static final String KEY_DATA_WARNING = "data_warning";
-    @VisibleForTesting static final String KEY_SET_DATA_LIMIT = "set_data_limit";
+    @VisibleForTesting
+    static final String KEY_SET_DATA_LIMIT = "set_data_limit";
     private static final String KEY_DATA_LIMIT = "data_limit";
 
     private NetworkTemplate mNetworkTemplate;
@@ -76,11 +75,11 @@
 
     @VisibleForTesting
     void setUpForTest(NetworkPolicyEditor policyEditor,
-                      Preference billingCycle,
-                      Preference dataLimit,
-                      Preference dataWarning,
-                      SwitchPreference enableLimit,
-                      SwitchPreference enableWarning) {
+            Preference billingCycle,
+            Preference dataLimit,
+            Preference dataWarning,
+            SwitchPreference enableLimit,
+            SwitchPreference enableWarning) {
         services.mPolicyEditor = policyEditor;
         mBillingCycle = billingCycle;
         mDataLimit = dataLimit;
@@ -118,14 +117,7 @@
 
     @VisibleForTesting
     void updatePrefs() {
-        final int cycleDay = services.mPolicyEditor.getPolicyCycleDay(mNetworkTemplate);
-        if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.DATA_USAGE_SETTINGS_V2)) {
-            mBillingCycle.setSummary(null);
-        } else if (cycleDay != CYCLE_NONE) {
-            mBillingCycle.setSummary(getString(R.string.billing_cycle_fragment_summary, cycleDay));
-        } else {
-            mBillingCycle.setSummary(null);
-        }
+        mBillingCycle.setSummary(null);
         final long warningBytes = services.mPolicyEditor.getPolicyWarningBytes(mNetworkTemplate);
         if (warningBytes != WARNING_DISABLED) {
             mDataWarning.setSummary(DataUsageUtils.formatDataUsage(getContext(), warningBytes));
@@ -402,7 +394,8 @@
      */
     public static class ConfirmLimitFragment extends InstrumentedDialogFragment implements
             DialogInterface.OnClickListener {
-        @VisibleForTesting static final String EXTRA_LIMIT_BYTES = "limitBytes";
+        @VisibleForTesting
+        static final String EXTRA_LIMIT_BYTES = "limitBytes";
         public static final float FLOAT = 1.2f;
 
         public static void show(BillingCycleSettings parent) {
diff --git a/src/com/android/settings/datausage/DataUsageBase.java b/src/com/android/settings/datausage/DataUsageBase.java
index b889a2f..c5df0bb 100644
--- a/src/com/android/settings/datausage/DataUsageBase.java
+++ b/src/com/android/settings/datausage/DataUsageBase.java
@@ -14,25 +14,19 @@
 
 package com.android.settings.datausage;
 
-import static android.net.ConnectivityManager.TYPE_ETHERNET;
-
 import android.content.Context;
-import android.net.ConnectivityManager;
 import android.net.INetworkStatsService;
-import android.net.INetworkStatsSession;
 import android.net.NetworkPolicy;
 import android.net.NetworkPolicyManager;
-import android.net.NetworkTemplate;
-import android.net.TrafficStats;
 import android.os.Bundle;
 import android.os.INetworkManagementService;
 import android.os.RemoteException;
 import android.os.ServiceManager;
-import android.os.SystemProperties;
 import android.os.UserManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.util.Log;
+
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settingslib.NetworkPolicyEditor;
 
@@ -99,34 +93,4 @@
             return false;
         }
     }
-
-    /**
-     * Test if device has an ethernet network connection.
-     */
-    public boolean hasEthernet(Context context) {
-        if (DataUsageUtils.TEST_RADIOS) {
-            return SystemProperties.get(DataUsageUtils.TEST_RADIOS_PROP).contains(ETHERNET);
-        }
-
-        final ConnectivityManager conn = ConnectivityManager.from(context);
-        final boolean hasEthernet = conn.isNetworkSupported(TYPE_ETHERNET);
-
-        final long ethernetBytes;
-        try {
-            INetworkStatsSession statsSession = services.mStatsService.openSession();
-            if (statsSession != null) {
-                ethernetBytes = statsSession.getSummaryForNetwork(
-                        NetworkTemplate.buildTemplateEthernet(), Long.MIN_VALUE, Long.MAX_VALUE)
-                        .getTotalBytes();
-                TrafficStats.closeQuietly(statsSession);
-            } else {
-                ethernetBytes = 0;
-            }
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
-
-        // only show ethernet when both hardware present and traffic has occurred
-        return hasEthernet && ethernetBytes > 0;
-    }
 }
diff --git a/src/com/android/settings/datausage/DataUsageBaseFragment.java b/src/com/android/settings/datausage/DataUsageBaseFragment.java
index e9c73ff..f6e88cc 100644
--- a/src/com/android/settings/datausage/DataUsageBaseFragment.java
+++ b/src/com/android/settings/datausage/DataUsageBaseFragment.java
@@ -14,27 +14,19 @@
 
 package com.android.settings.datausage;
 
-import static android.net.ConnectivityManager.TYPE_ETHERNET;
-
 import android.content.Context;
-import android.net.ConnectivityManager;
 import android.net.INetworkStatsService;
-import android.net.INetworkStatsSession;
 import android.net.NetworkPolicy;
 import android.net.NetworkPolicyManager;
-import android.net.NetworkTemplate;
-import android.net.TrafficStats;
 import android.os.Bundle;
 import android.os.INetworkManagementService;
 import android.os.RemoteException;
 import android.os.ServiceManager;
-import android.os.SystemProperties;
 import android.os.UserManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.util.Log;
 
-import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settingslib.NetworkPolicyEditor;
 
@@ -54,7 +46,7 @@
                 ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE));
         services.mStatsService = INetworkStatsService.Stub.asInterface(
                 ServiceManager.getService(Context.NETWORK_STATS_SERVICE));
-        services.mPolicyManager = (NetworkPolicyManager)context
+        services.mPolicyManager = (NetworkPolicyManager) context
                 .getSystemService(Context.NETWORK_POLICY_SERVICE);
 
         services.mPolicyEditor = new NetworkPolicyEditor(services.mPolicyManager);
@@ -98,35 +90,4 @@
             return false;
         }
     }
-
-    /**
-     * Test if device has an ethernet network connection.
-     * TODO(b/77590489): Remove this method when DataUsageSummaryLegacy is deprecated.
-     */
-    public boolean hasEthernet(Context context) {
-        if (DataUsageUtils.TEST_RADIOS) {
-            return SystemProperties.get(DataUsageUtils.TEST_RADIOS_PROP).contains(ETHERNET);
-        }
-
-        final ConnectivityManager conn = ConnectivityManager.from(context);
-        final boolean hasEthernet = conn.isNetworkSupported(TYPE_ETHERNET);
-
-        final long ethernetBytes;
-        try {
-            INetworkStatsSession statsSession = services.mStatsService.openSession();
-            if (statsSession != null) {
-                ethernetBytes = statsSession.getSummaryForNetwork(
-                        NetworkTemplate.buildTemplateEthernet(), Long.MIN_VALUE, Long.MAX_VALUE)
-                        .getTotalBytes();
-                TrafficStats.closeQuietly(statsSession);
-            } else {
-                ethernetBytes = 0;
-            }
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
-
-        // only show ethernet when both hardware present and traffic has occurred
-        return hasEthernet && ethernetBytes > 0;
-    }
 }
diff --git a/src/com/android/settings/datausage/DataUsagePreference.java b/src/com/android/settings/datausage/DataUsagePreference.java
index bb3902c..af8d6d4 100644
--- a/src/com/android/settings/datausage/DataUsagePreference.java
+++ b/src/com/android/settings/datausage/DataUsagePreference.java
@@ -19,17 +19,16 @@
 import android.content.res.TypedArray;
 import android.net.NetworkTemplate;
 import android.os.Bundle;
-import androidx.core.content.res.TypedArrayUtils;
-import androidx.preference.Preference;
 import android.util.AttributeSet;
-import android.util.FeatureFlagUtils;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settingslib.net.DataUsageController;
 
+import androidx.core.content.res.TypedArrayUtils;
+import androidx.preference.Preference;
+
 public class DataUsagePreference extends Preference implements TemplatePreference {
 
     private NetworkTemplate mTemplate;
@@ -54,20 +53,13 @@
         mSubId = subId;
         DataUsageController controller = new DataUsageController(getContext());
         DataUsageController.DataUsageInfo usageInfo = controller.getDataUsageInfo(mTemplate);
-        if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.DATA_USAGE_SETTINGS_V2)) {
-            if (mTemplate.isMatchRuleMobile()) {
-                setTitle(R.string.app_cellular_data_usage);
-            } else {
-                setTitle(mTitleRes);
-                setSummary(getContext().getString(R.string.data_usage_template,
-                        DataUsageUtils.formatDataUsage(getContext(), usageInfo.usageLevel),
-                                usageInfo.period));
-            }
+        if (mTemplate.isMatchRuleMobile()) {
+            setTitle(R.string.app_cellular_data_usage);
         } else {
             setTitle(mTitleRes);
             setSummary(getContext().getString(R.string.data_usage_template,
                     DataUsageUtils.formatDataUsage(getContext(), usageInfo.usageLevel),
-                            usageInfo.period));
+                    usageInfo.period));
         }
         setIntent(getIntent());
     }
@@ -81,18 +73,10 @@
                 .setArguments(args)
                 .setDestination(DataUsageList.class.getName())
                 .setSourceMetricsCategory(MetricsProto.MetricsEvent.VIEW_UNKNOWN);
-        if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.DATA_USAGE_SETTINGS_V2)) {
-            if (mTemplate.isMatchRuleMobile()) {
-                launcher.setTitleRes(R.string.app_cellular_data_usage);
-            } else {
-                launcher.setTitleRes(mTitleRes);
-            }
+        if (mTemplate.isMatchRuleMobile()) {
+            launcher.setTitleRes(R.string.app_cellular_data_usage);
         } else {
-            if (mTitleRes > 0) {
-                launcher.setTitleRes(mTitleRes);
-            } else {
-                launcher.setTitleText(getTitle());
-            }
+            launcher.setTitleRes(mTitleRes);
         }
         return launcher.toIntent();
     }
diff --git a/src/com/android/settings/datausage/DataUsageSummary.java b/src/com/android/settings/datausage/DataUsageSummary.java
index 1b012f1..58a5a8f 100644
--- a/src/com/android/settings/datausage/DataUsageSummary.java
+++ b/src/com/android/settings/datausage/DataUsageSummary.java
@@ -15,15 +15,10 @@
 package com.android.settings.datausage;
 
 import android.app.Activity;
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.Intent;
 import android.net.NetworkTemplate;
 import android.os.Bundle;
 import android.provider.SearchIndexableResource;
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.SubscriptionPlan;
@@ -33,7 +28,6 @@
 import android.text.TextUtils;
 import android.text.format.Formatter;
 import android.text.style.RelativeSizeSpan;
-import android.view.MenuItem;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
@@ -49,6 +43,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
 /**
  * Settings preference fragment that displays data usage summary.
  */
@@ -121,20 +119,6 @@
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case R.id.data_usage_menu_cellular_networks: {
-                final Intent intent = new Intent(Intent.ACTION_MAIN);
-                intent.setComponent(new ComponentName("com.android.phone",
-                        "com.android.phone.MobileNetworkSettings"));
-                startActivity(intent);
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
     public boolean onPreferenceTreeClick(Preference preference) {
         if (preference == findPreference(KEY_STATUS_HEADER)) {
             BillingCycleSettings.BytesEditorFragment.show(this, false);
diff --git a/src/com/android/settings/datausage/DataUsageSummaryLegacy.java b/src/com/android/settings/datausage/DataUsageSummaryLegacy.java
deleted file mode 100644
index f54d6ef..0000000
--- a/src/com/android/settings/datausage/DataUsageSummaryLegacy.java
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the
- * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the specific language governing
- * permissions and limitations under the License.
- */
-
-package com.android.settings.datausage;
-
-import android.app.Activity;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.net.NetworkPolicyManager;
-import android.net.NetworkTemplate;
-import android.os.Bundle;
-import android.os.UserManager;
-import android.telephony.SubscriptionInfo;
-import android.telephony.SubscriptionManager;
-import android.text.BidiFormatter;
-import android.text.Spannable;
-import android.text.SpannableString;
-import android.text.TextUtils;
-import android.text.format.Formatter;
-import android.text.style.RelativeSizeSpan;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-
-import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.R;
-import com.android.settings.SummaryPreference;
-import com.android.settings.Utils;
-import com.android.settings.dashboard.SummaryLoader;
-import com.android.settings.search.Indexable;
-import com.android.settingslib.NetworkPolicyEditor;
-import com.android.settingslib.core.AbstractPreferenceController;
-import com.android.settingslib.net.DataUsageController;
-
-import java.util.List;
-
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
-
-/**
- * Legacy {@link DataUsageSummary} fragment.
- */
-public class DataUsageSummaryLegacy extends DataUsageBaseFragment implements Indexable,
-        DataUsageEditController {
-
-    private static final String TAG = "DataUsageSummaryLegacy";
-
-    static final boolean LOGD = false;
-
-    public static final String KEY_RESTRICT_BACKGROUND = "restrict_background_legacy";
-
-    private static final String KEY_STATUS_HEADER = "status_header";
-    private static final String KEY_LIMIT_SUMMARY = "limit_summary";
-
-    // Mobile data keys
-    public static final String KEY_MOBILE_USAGE_TITLE = "mobile_category";
-    public static final String KEY_MOBILE_DATA_USAGE_TOGGLE = "data_usage_enable";
-    public static final String KEY_MOBILE_DATA_USAGE = "cellular_data_usage";
-    public static final String KEY_MOBILE_BILLING_CYCLE = "billing_preference";
-
-    // Wifi keys
-    public static final String KEY_WIFI_USAGE_TITLE = "wifi_category";
-    public static final String KEY_WIFI_DATA_USAGE = "wifi_data_usage";
-
-    private DataUsageController mDataUsageController;
-    private DataUsageInfoController mDataInfoController;
-    private SummaryPreference mSummaryPreference;
-    private Preference mLimitPreference;
-    private NetworkTemplate mDefaultTemplate;
-    private int mDataUsageTemplate;
-    private NetworkPolicyEditor mPolicyEditor;
-
-    @Override
-    public int getHelpResource() {
-        return R.string.help_url_data_usage;
-    }
-
-    @Override
-    public void onCreate(Bundle icicle) {
-        super.onCreate(icicle);
-
-        final Context context = getContext();
-        NetworkPolicyManager policyManager = NetworkPolicyManager.from(context);
-        mPolicyEditor = new NetworkPolicyEditor(policyManager);
-
-        boolean hasMobileData = DataUsageUtils.hasMobileData(context);
-        mDataUsageController = new DataUsageController(context);
-        mDataInfoController = new DataUsageInfoController();
-
-        int defaultSubId = DataUsageUtils.getDefaultSubscriptionId(context);
-        if (defaultSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
-            hasMobileData = false;
-        }
-        mDefaultTemplate = DataUsageUtils.getDefaultTemplate(context, defaultSubId);
-        mSummaryPreference = (SummaryPreference) findPreference(KEY_STATUS_HEADER);
-
-        if (!hasMobileData || !isAdmin()) {
-            removePreference(KEY_RESTRICT_BACKGROUND);
-        }
-        if (hasMobileData) {
-            mLimitPreference = findPreference(KEY_LIMIT_SUMMARY);
-            List<SubscriptionInfo> subscriptions =
-                    services.mSubscriptionManager.getActiveSubscriptionInfoList();
-            if (subscriptions == null || subscriptions.size() == 0) {
-                addMobileSection(defaultSubId);
-            }
-            for (int i = 0; subscriptions != null && i < subscriptions.size(); i++) {
-                SubscriptionInfo subInfo = subscriptions.get(i);
-                if (subscriptions.size() > 1) {
-                    addMobileSection(subInfo.getSubscriptionId(), subInfo);
-                } else {
-                    addMobileSection(subInfo.getSubscriptionId());
-                }
-            }
-            mSummaryPreference.setSelectable(true);
-        } else {
-            removePreference(KEY_LIMIT_SUMMARY);
-            mSummaryPreference.setSelectable(false);
-        }
-        boolean hasWifiRadio = DataUsageUtils.hasWifiRadio(context);
-        if (hasWifiRadio) {
-            addWifiSection();
-        }
-        if (hasEthernet(context)) {
-            addEthernetSection();
-        }
-        mDataUsageTemplate = hasMobileData ? R.string.cell_data_template
-                : hasWifiRadio ? R.string.wifi_data_template
-                        : R.string.ethernet_data_template;
-
-        setHasOptionsMenu(true);
-    }
-
-    @Override
-    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
-        if (UserManager.get(getContext()).isAdminUser()) {
-            inflater.inflate(R.menu.data_usage, menu);
-        }
-        super.onCreateOptionsMenu(menu, inflater);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case R.id.data_usage_menu_cellular_networks: {
-                final Intent intent = new Intent(Intent.ACTION_MAIN);
-                intent.setComponent(new ComponentName("com.android.phone",
-                        "com.android.phone.MobileNetworkSettings"));
-                startActivity(intent);
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public boolean onPreferenceTreeClick(Preference preference) {
-        if (preference == findPreference(KEY_STATUS_HEADER)) {
-            BillingCycleSettings.BytesEditorFragment.show(this, false);
-            return false;
-        }
-        return super.onPreferenceTreeClick(preference);
-    }
-
-    @Override
-    protected int getPreferenceScreenResId() {
-        return R.xml.data_usage_legacy;
-    }
-
-    @Override
-    protected String getLogTag() {
-        return TAG;
-    }
-
-    @Override
-    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
-        return null;
-    }
-
-    private void addMobileSection(int subId) {
-        addMobileSection(subId, null);
-    }
-
-    private void addMobileSection(int subId, SubscriptionInfo subInfo) {
-        TemplatePreferenceCategory category = (TemplatePreferenceCategory)
-                inflatePreferences(R.xml.data_usage_cellular);
-        category.setTemplate(getNetworkTemplate(subId), subId, services);
-        category.pushTemplates(services);
-        if (subInfo != null && !TextUtils.isEmpty(subInfo.getDisplayName())) {
-            Preference title = category.findPreference(KEY_MOBILE_USAGE_TITLE);
-            title.setTitle(subInfo.getDisplayName());
-        }
-    }
-
-    private void addWifiSection() {
-        TemplatePreferenceCategory category = (TemplatePreferenceCategory)
-                inflatePreferences(R.xml.data_usage_wifi);
-        category.setTemplate(NetworkTemplate.buildTemplateWifiWildcard(), 0, services);
-    }
-
-    private void addEthernetSection() {
-        TemplatePreferenceCategory category = (TemplatePreferenceCategory)
-                inflatePreferences(R.xml.data_usage_ethernet);
-        category.setTemplate(NetworkTemplate.buildTemplateEthernet(), 0, services);
-    }
-
-    private Preference inflatePreferences(int resId) {
-        PreferenceScreen rootPreferences = getPreferenceManager().inflateFromResource(
-                getPrefContext(), resId, null);
-        Preference pref = rootPreferences.getPreference(0);
-        rootPreferences.removeAll();
-
-        PreferenceScreen screen = getPreferenceScreen();
-        pref.setOrder(screen.getPreferenceCount());
-        screen.addPreference(pref);
-
-        return pref;
-    }
-
-    private NetworkTemplate getNetworkTemplate(int subscriptionId) {
-        NetworkTemplate mobileAll = NetworkTemplate.buildTemplateMobileAll(
-                services.mTelephonyManager.getSubscriberId(subscriptionId));
-        return NetworkTemplate.normalize(mobileAll,
-                services.mTelephonyManager.getMergedSubscriberIds());
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        updateState();
-    }
-
-    @VisibleForTesting
-    static CharSequence formatUsage(Context context, String template, long usageLevel) {
-        final float LARGER_SIZE = 1.25f * 1.25f;  // (1/0.8)^2
-        final float SMALLER_SIZE = 1.0f / LARGER_SIZE;  // 0.8^2
-        final int FLAGS = Spannable.SPAN_INCLUSIVE_INCLUSIVE;
-
-        final Formatter.BytesResult usedResult = Formatter.formatBytes(context.getResources(),
-                usageLevel, Formatter.FLAG_CALCULATE_ROUNDED);
-        final SpannableString enlargedValue = new SpannableString(usedResult.value);
-        enlargedValue.setSpan(new RelativeSizeSpan(LARGER_SIZE), 0, enlargedValue.length(), FLAGS);
-
-        final SpannableString amountTemplate = new SpannableString(
-                context.getString(com.android.internal.R.string.fileSizeSuffix)
-                        .replace("%1$s", "^1").replace("%2$s", "^2"));
-        final CharSequence formattedUsage = TextUtils.expandTemplate(amountTemplate,
-                enlargedValue, usedResult.units);
-
-        final SpannableString fullTemplate = new SpannableString(template);
-        fullTemplate.setSpan(new RelativeSizeSpan(SMALLER_SIZE), 0, fullTemplate.length(), FLAGS);
-        return TextUtils.expandTemplate(fullTemplate,
-                BidiFormatter.getInstance().unicodeWrap(formattedUsage.toString()));
-    }
-
-    private void updateState() {
-        DataUsageController.DataUsageInfo info = mDataUsageController.getDataUsageInfo(
-                mDefaultTemplate);
-        Context context = getContext();
-        mDataInfoController.updateDataLimit(info,
-                services.mPolicyEditor.getPolicy(mDefaultTemplate));
-
-        if (mSummaryPreference != null) {
-            mSummaryPreference.setTitle(
-                    formatUsage(context, getString(mDataUsageTemplate), info.usageLevel));
-            final long limit = mDataInfoController.getSummaryLimit(info);
-            mSummaryPreference.setSummary(info.period);
-            if (limit <= 0) {
-                mSummaryPreference.setChartEnabled(false);
-            } else {
-                mSummaryPreference.setChartEnabled(true);
-                mSummaryPreference.setLabels(Formatter.formatFileSize(context, 0),
-                        Formatter.formatFileSize(context, limit));
-                mSummaryPreference.setRatios(info.usageLevel / (float) limit, 0,
-                        (limit - info.usageLevel) / (float) limit);
-            }
-        }
-        if (mLimitPreference != null && (info.warningLevel > 0 || info.limitLevel > 0)) {
-            String warning = Formatter.formatFileSize(context, info.warningLevel);
-            String limit = Formatter.formatFileSize(context, info.limitLevel);
-            mLimitPreference.setSummary(getString(info.limitLevel <= 0 ? R.string.cell_warning_only
-                    : R.string.cell_warning_and_limit, warning, limit));
-        } else if (mLimitPreference != null) {
-            mLimitPreference.setSummary(null);
-        }
-
-        PreferenceScreen screen = getPreferenceScreen();
-        for (int i = 1; i < screen.getPreferenceCount(); i++) {
-            ((TemplatePreferenceCategory) screen.getPreference(i)).pushTemplates(services);
-        }
-    }
-
-    @Override
-    public int getMetricsCategory() {
-        return MetricsEvent.DATA_USAGE_SUMMARY;
-    }
-
-    @Override
-    public NetworkPolicyEditor getNetworkPolicyEditor() {
-        return services.mPolicyEditor;
-    }
-
-    @Override
-    public NetworkTemplate getNetworkTemplate() {
-        return mDefaultTemplate;
-    }
-
-    @Override
-    public void updateDataUsage() {
-        updateState();
-    }
-
-    private static class SummaryProvider
-            implements SummaryLoader.SummaryProvider {
-
-        private final Activity mActivity;
-        private final SummaryLoader mSummaryLoader;
-        private final DataUsageController mDataController;
-
-        public SummaryProvider(Activity activity, SummaryLoader summaryLoader) {
-            mActivity = activity;
-            mSummaryLoader = summaryLoader;
-            mDataController = new DataUsageController(activity);
-        }
-
-        @Override
-        public void setListening(boolean listening) {
-            if (listening) {
-                DataUsageController.DataUsageInfo info = mDataController.getDataUsageInfo();
-                String used;
-                if (info == null) {
-                    used = Formatter.formatFileSize(mActivity, 0);
-                } else if (info.limitLevel <= 0) {
-                    used = Formatter.formatFileSize(mActivity, info.usageLevel);
-                } else {
-                    used = Utils.formatPercentage(info.usageLevel, info.limitLevel);
-                }
-                mSummaryLoader.setSummary(this,
-                        mActivity.getString(R.string.data_usage_summary_format, used));
-            }
-        }
-    }
-
-    public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
-            = SummaryProvider::new;
-}
diff --git a/src/com/android/settings/gestures/PreventRingingParentPreferenceController.java b/src/com/android/settings/gestures/PreventRingingParentPreferenceController.java
index 8814765..afb3431 100644
--- a/src/com/android/settings/gestures/PreventRingingParentPreferenceController.java
+++ b/src/com/android/settings/gestures/PreventRingingParentPreferenceController.java
@@ -16,12 +16,20 @@
 
 package com.android.settings.gestures;
 
-import android.content.Context;
+import static android.provider.Settings.Secure.VOLUME_HUSH_GESTURE;
+import static android.provider.Settings.Secure.VOLUME_HUSH_MUTE;
+import static android.provider.Settings.Secure.VOLUME_HUSH_VIBRATE;
 
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 
 public class PreventRingingParentPreferenceController extends BasePreferenceController {
 
+    final String SECURE_KEY = VOLUME_HUSH_GESTURE;
+
     public PreventRingingParentPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
     }
@@ -33,4 +41,21 @@
                 ? AVAILABLE_UNSEARCHABLE : UNSUPPORTED_ON_DEVICE;
     }
 
+    @Override
+    public CharSequence getSummary() {
+        int value = Settings.Secure.getInt(
+                mContext.getContentResolver(), SECURE_KEY, VOLUME_HUSH_VIBRATE);
+        int summary;
+        switch (value) {
+            case VOLUME_HUSH_VIBRATE:
+                summary = R.string.prevent_ringing_option_vibrate_summary;
+                break;
+            case VOLUME_HUSH_MUTE:
+                summary = R.string.prevent_ringing_option_mute_summary;
+                break;
+            default:
+                summary = R.string.prevent_ringing_option_none_summary;
+        }
+        return mContext.getText(summary);
+    }
 }
diff --git a/src/com/android/settings/gestures/PreventRingingPreferenceController.java b/src/com/android/settings/gestures/PreventRingingPreferenceController.java
index be55151..7f685e5 100644
--- a/src/com/android/settings/gestures/PreventRingingPreferenceController.java
+++ b/src/com/android/settings/gestures/PreventRingingPreferenceController.java
@@ -50,8 +50,6 @@
     @VisibleForTesting
     boolean mVideoPaused;
 
-    private final String SECURE_KEY = VOLUME_HUSH_GESTURE;
-
     public PreventRingingPreferenceController(Context context, String key) {
         super(context, key);
     }
@@ -96,24 +94,6 @@
     }
 
     @Override
-    public CharSequence getSummary() {
-        int value = Settings.Secure.getInt(
-                mContext.getContentResolver(), SECURE_KEY, VOLUME_HUSH_VIBRATE);
-        int summary;
-        switch (value) {
-            case VOLUME_HUSH_VIBRATE:
-                summary = R.string.prevent_ringing_option_vibrate_summary;
-                break;
-            case VOLUME_HUSH_MUTE:
-                summary = R.string.prevent_ringing_option_mute_summary;
-                break;
-            default:
-                summary = R.string.prevent_ringing_option_none_summary;
-        }
-        return mContext.getString(summary);
-    }
-
-    @Override
     public void onCreate(Bundle savedInstanceState) {
         if (savedInstanceState != null) {
             mVideoPaused = savedInstanceState.getBoolean(KEY_VIDEO_PAUSED, false);
diff --git a/src/com/android/settings/location/LocationSettings.java b/src/com/android/settings/location/LocationSettings.java
index 9f23396..638518c 100644
--- a/src/com/android/settings/location/LocationSettings.java
+++ b/src/com/android/settings/location/LocationSettings.java
@@ -21,8 +21,7 @@
 import android.location.SettingInjectorService;
 import android.os.Bundle;
 import android.provider.SearchIndexableResource;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceGroup;
+
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
@@ -42,6 +41,9 @@
 import java.util.Comparator;
 import java.util.List;
 
+import androidx.preference.Preference;
+import androidx.preference.PreferenceGroup;
+
 /**
  * System location settings (Settings &gt; Location). The screen has three parts:
  * <ul>
@@ -177,5 +179,12 @@
                     return buildPreferenceControllers(context, null /* fragment */,
                             null /* lifecycle */);
                 }
+
+                @Override
+                public List<String> getNonIndexableKeys(Context context) {
+                    final List<String> niks = super.getNonIndexableKeys(context);
+                    niks.add("recent_location_requests_see_all_button"); // 'See all' button
+                    return niks;
+                }
             };
 }
diff --git a/src/com/android/settings/security/LockscreenDashboardFragment.java b/src/com/android/settings/security/LockscreenDashboardFragment.java
index 9669863..eaaf51d 100644
--- a/src/com/android/settings/security/LockscreenDashboardFragment.java
+++ b/src/com/android/settings/security/LockscreenDashboardFragment.java
@@ -29,7 +29,6 @@
 import com.android.settings.gestures.PickupGesturePreferenceController;
 import com.android.settings.notification.LockScreenNotificationPreferenceController;
 import com.android.settings.search.BaseSearchIndexProvider;
-import com.android.settings.users.AddUserWhenLockedPreferenceController;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.core.lifecycle.Lifecycle;
 import com.android.settingslib.search.SearchIndexable;
@@ -109,8 +108,6 @@
                         KEY_LOCK_SCREEN_NOTIFICATON_WORK_PROFILE);
         lifecycle.addObserver(notificationController);
         controllers.add(notificationController);
-        controllers.add(new AddUserWhenLockedPreferenceController(
-                context, KEY_ADD_USER_FROM_LOCK_SCREEN, lifecycle));
         mOwnerInfoPreferenceController =
                 new OwnerInfoPreferenceController(context, this, lifecycle);
         controllers.add(mOwnerInfoPreferenceController);
@@ -147,8 +144,6 @@
                         Context context) {
                     final List<AbstractPreferenceController> controllers = new ArrayList<>();
                     controllers.add(new LockScreenNotificationPreferenceController(context));
-                    controllers.add(new AddUserWhenLockedPreferenceController(context,
-                            KEY_ADD_USER_FROM_LOCK_SCREEN, null /* lifecycle */));
                     controllers.add(new OwnerInfoPreferenceController(
                             context, null /* fragment */, null /* lifecycle */));
                     return controllers;
diff --git a/src/com/android/settings/users/AddUserWhenLockedPreferenceController.java b/src/com/android/settings/users/AddUserWhenLockedPreferenceController.java
index bebc2d7..2a61cac 100644
--- a/src/com/android/settings/users/AddUserWhenLockedPreferenceController.java
+++ b/src/com/android/settings/users/AddUserWhenLockedPreferenceController.java
@@ -16,72 +16,53 @@
 package com.android.settings.users;
 
 import android.content.Context;
-import android.provider.Settings.Global;
+import android.provider.Settings;
+
+import com.android.settings.core.TogglePreferenceController;
+import com.android.settingslib.RestrictedSwitchPreference;
+
 import androidx.preference.Preference;
 
-import com.android.settings.core.PreferenceControllerMixin;
-import com.android.settingslib.RestrictedSwitchPreference;
-import com.android.settingslib.core.AbstractPreferenceController;
-import com.android.settingslib.core.lifecycle.Lifecycle;
-import com.android.settingslib.core.lifecycle.LifecycleObserver;
-import com.android.settingslib.core.lifecycle.events.OnPause;
-import com.android.settingslib.core.lifecycle.events.OnResume;
+public class AddUserWhenLockedPreferenceController extends TogglePreferenceController {
 
-public class AddUserWhenLockedPreferenceController extends AbstractPreferenceController
-        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
-        LifecycleObserver, OnPause, OnResume {
-
-    private final String mPrefKey;
     private final UserCapabilities mUserCaps;
-    private boolean mShouldUpdateUserList;
 
-    public AddUserWhenLockedPreferenceController(Context context, String key, Lifecycle lifecycle) {
-        super(context);
-        mPrefKey = key;
+    public AddUserWhenLockedPreferenceController(Context context, String key) {
+        super(context, key);
         mUserCaps = UserCapabilities.create(context);
-        if (lifecycle != null) {
-            lifecycle.addObserver(this);
-        }
     }
 
     @Override
     public void updateState(Preference preference) {
-        RestrictedSwitchPreference restrictedSwitchPreference =
+        super.updateState(preference);
+        mUserCaps.updateAddUserCapabilities(mContext);
+        final RestrictedSwitchPreference restrictedSwitchPreference =
                 (RestrictedSwitchPreference) preference;
-        int value = Global.getInt(mContext.getContentResolver(), Global.ADD_USERS_WHEN_LOCKED, 0);
-        restrictedSwitchPreference.setChecked(value == 1);
         restrictedSwitchPreference.setDisabledByAdmin(
                 mUserCaps.disallowAddUser() ? mUserCaps.getEnforcedAdmin() : null);
+        restrictedSwitchPreference.setVisible(mUserCaps.mUserSwitcherEnabled);
     }
 
     @Override
-    public boolean onPreferenceChange(Preference preference, Object newValue) {
-        Boolean value = (Boolean) newValue;
-        Global.putInt(mContext.getContentResolver(),
-                Global.ADD_USERS_WHEN_LOCKED, value != null && value ? 1 : 0);
-        return true;
-    }
-
-    @Override
-    public void onPause() {
-        mShouldUpdateUserList = true;
-    }
-
-    @Override
-    public void onResume() {
-        if (mShouldUpdateUserList) {
-            mUserCaps.updateAddUserCapabilities(mContext);
+    public int getAvailabilityStatus() {
+        if (!mUserCaps.isAdmin()) {
+            return DISABLED_FOR_USER;
+        } else if (mUserCaps.disallowAddUser() || mUserCaps.disallowAddUserSetByAdmin()) {
+            return DISABLED_FOR_USER;
+        } else {
+            return mUserCaps.mUserSwitcherEnabled ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
         }
     }
 
     @Override
-    public boolean isAvailable() {
-        return mUserCaps.isAdmin() &&
-                (!mUserCaps.disallowAddUser() || mUserCaps.disallowAddUserSetByAdmin());
+    public boolean isChecked() {
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.ADD_USERS_WHEN_LOCKED, 0) == 1;
     }
 
     @Override
-    public String getPreferenceKey() {
-        return mPrefKey;
+    public boolean setChecked(boolean isChecked) {
+        return Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.ADD_USERS_WHEN_LOCKED, isChecked ? 1 : 0);
     }
 }
diff --git a/src/com/android/settings/users/MultiUserFooterPreferenceController.java b/src/com/android/settings/users/MultiUserFooterPreferenceController.java
new file mode 100644
index 0000000..877df58
--- /dev/null
+++ b/src/com/android/settings/users/MultiUserFooterPreferenceController.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.users;
+
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.FooterPreference;
+import com.android.settingslib.widget.FooterPreferenceMixin;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+
+public class MultiUserFooterPreferenceController extends BasePreferenceController {
+
+    @VisibleForTesting
+    final UserCapabilities mUserCaps;
+
+    private FooterPreferenceMixin mFooterMixin;
+
+    public MultiUserFooterPreferenceController(Context context) {
+        super(context, "dummy_key");
+        mUserCaps = UserCapabilities.create(context);
+    }
+
+    public MultiUserFooterPreferenceController setFooterMixin(FooterPreferenceMixin footerMixin) {
+        mFooterMixin = footerMixin;
+        return this;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return (mUserCaps.mEnabled && !mUserCaps.mUserSwitcherEnabled)
+                ? AVAILABLE_UNSEARCHABLE
+                : DISABLED_FOR_USER;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        mUserCaps.updateAddUserCapabilities(mContext);
+        final FooterPreference pref = mFooterMixin.createFooterPreference();
+        pref.setTitle(R.string.user_settings_footer_text);
+        pref.setVisible(isAvailable());
+    }
+}
diff --git a/src/com/android/settings/users/MultiUserSwitchBarController.java b/src/com/android/settings/users/MultiUserSwitchBarController.java
new file mode 100644
index 0000000..9588f71
--- /dev/null
+++ b/src/com/android/settings/users/MultiUserSwitchBarController.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.users;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.Log;
+
+import com.android.settings.widget.SwitchWidgetController;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+public class MultiUserSwitchBarController implements SwitchWidgetController.OnSwitchChangeListener,
+        LifecycleObserver, OnStart, OnStop {
+
+    interface OnMultiUserSwitchChangedListener {
+        void onMultiUserSwitchChanged(boolean newState);
+    }
+
+    private static final String TAG = "MultiUserSwitchBarCtrl";
+    private final Context mContext;
+    private final SwitchWidgetController mSwitchBar;
+    private final UserCapabilities mUserCapabilities;
+    private final OnMultiUserSwitchChangedListener mListener;
+
+    MultiUserSwitchBarController(Context context, SwitchWidgetController switchBar,
+            OnMultiUserSwitchChangedListener listener) {
+        mContext = context;
+        mSwitchBar = switchBar;
+        mListener = listener;
+        mUserCapabilities = UserCapabilities.create(context);
+        mSwitchBar.setChecked(mUserCapabilities.mUserSwitcherEnabled);
+        mSwitchBar.setEnabled(!mUserCapabilities.mDisallowSwitchUser
+                && !mUserCapabilities.mIsGuest && mUserCapabilities.isAdmin());
+        mSwitchBar.setListener(this);
+    }
+
+    @Override
+    public void onStart() {
+        mSwitchBar.startListening();
+    }
+
+    @Override
+    public void onStop() {
+        mSwitchBar.stopListening();
+    }
+
+    @Override
+    public boolean onSwitchToggled(boolean isChecked) {
+        Log.d(TAG, "Toggling multi-user feature enabled state to: " + isChecked);
+        final boolean success = Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.USER_SWITCHER_ENABLED, isChecked ? 1 : 0);
+        if (success && mListener != null) {
+            mListener.onMultiUserSwitchChanged(isChecked);
+        }
+        return success;
+    }
+}
diff --git a/src/com/android/settings/users/UserCapabilities.java b/src/com/android/settings/users/UserCapabilities.java
index f1bfae9..b9a2228 100644
--- a/src/com/android/settings/users/UserCapabilities.java
+++ b/src/com/android/settings/users/UserCapabilities.java
@@ -22,6 +22,7 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
+
 import com.android.settings.Utils;
 import com.android.settingslib.RestrictedLockUtils;
 
@@ -31,13 +32,15 @@
     boolean mCanAddRestrictedProfile = true;
     boolean mIsAdmin;
     boolean mIsGuest;
+    boolean mUserSwitcherEnabled;
     boolean mCanAddGuest;
     boolean mDisallowAddUser;
     boolean mDisallowAddUserSetByAdmin;
     boolean mDisallowSwitchUser;
     RestrictedLockUtils.EnforcedAdmin mEnforcedAdmin;
 
-    private UserCapabilities() {}
+    private UserCapabilities() {
+    }
 
     public static UserCapabilities create(Context context) {
         UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
@@ -62,14 +65,15 @@
     }
 
     public void updateAddUserCapabilities(Context context) {
+        final UserManager userManager =
+                (UserManager) context.getSystemService(Context.USER_SERVICE);
         mEnforcedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(context,
                 UserManager.DISALLOW_ADD_USER, UserHandle.myUserId());
         final boolean hasBaseUserRestriction = RestrictedLockUtils.hasBaseUserRestriction(
                 context, UserManager.DISALLOW_ADD_USER, UserHandle.myUserId());
-        mDisallowAddUserSetByAdmin =
-                mEnforcedAdmin != null && !hasBaseUserRestriction;
-        mDisallowAddUser =
-                (mEnforcedAdmin != null || hasBaseUserRestriction);
+        mDisallowAddUserSetByAdmin = mEnforcedAdmin != null && !hasBaseUserRestriction;
+        mDisallowAddUser = (mEnforcedAdmin != null || hasBaseUserRestriction);
+        mUserSwitcherEnabled = userManager.isUserSwitcherEnabled();
         mCanAddUser = true;
         if (!mIsAdmin || UserManager.getMaxSupportedUsers() < 2
                 || !UserManager.supportsMultipleUsers()
@@ -81,7 +85,6 @@
                 context.getContentResolver(), Settings.Global.ADD_USERS_WHEN_LOCKED, 0) == 1;
         mCanAddGuest = !mIsGuest && !mDisallowAddUser && canAddUsersWhenLocked;
 
-        UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
         mDisallowSwitchUser = userManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH);
     }
 
diff --git a/src/com/android/settings/users/UserSettings.java b/src/com/android/settings/users/UserSettings.java
index a33561b..c57d959 100644
--- a/src/com/android/settings/users/UserSettings.java
+++ b/src/com/android/settings/users/UserSettings.java
@@ -48,13 +48,13 @@
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.View.OnClickListener;
 import android.widget.SimpleAdapter;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.util.UserIcons;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
+import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.Utils;
 import com.android.settings.core.SubSettingLauncher;
@@ -62,6 +62,8 @@
 import com.android.settings.password.ChooseLockGeneric;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.search.Indexable;
+import com.android.settings.widget.SwitchBar;
+import com.android.settings.widget.SwitchBarController;
 import com.android.settingslib.RestrictedLockUtils;
 import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
 import com.android.settingslib.RestrictedPreference;
@@ -78,7 +80,6 @@
 import androidx.annotation.VisibleForTesting;
 import androidx.annotation.WorkerThread;
 import androidx.preference.Preference;
-import androidx.preference.Preference.OnPreferenceClickListener;
 import androidx.preference.PreferenceGroup;
 import androidx.preference.PreferenceScreen;
 
@@ -92,7 +93,9 @@
  */
 @SearchIndexable
 public class UserSettings extends SettingsPreferenceFragment
-        implements OnPreferenceClickListener, OnClickListener, DialogInterface.OnDismissListener,
+        implements Preference.OnPreferenceClickListener, View.OnClickListener,
+        MultiUserSwitchBarController.OnMultiUserSwitchChangedListener,
+        DialogInterface.OnDismissListener,
         EditUserInfoController.OnContentChangedCallback, Indexable {
 
     private static final String TAG = "UserSettings";
@@ -155,8 +158,10 @@
     private SparseArray<Bitmap> mUserIcons = new SparseArray<>();
     private static SparseArray<Bitmap> sDarkDefaultUserBitmapCache = new SparseArray<>();
 
+    private MultiUserSwitchBarController mSwitchBarController;
     private EditUserInfoController mEditUserInfoController = new EditUserInfoController();
     private AddUserWhenLockedPreferenceController mAddUserWhenLockedPreferenceController;
+    private MultiUserFooterPreferenceController mMultiUserFooterPreferenceController;
 
     // A place to cache the generated default avatar
     private Drawable mDefaultIconDrawable;
@@ -199,19 +204,36 @@
     }
 
     @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        // Assume we are in a SettingsActivity. This is only safe because we currently use
+        // SettingsActivity as base for all preference fragments.
+        final SettingsActivity activity = (SettingsActivity) getActivity();
+        final SwitchBar switchBar = activity.getSwitchBar();
+        mSwitchBarController = new MultiUserSwitchBarController(activity,
+                new SwitchBarController(switchBar), this /* listener */);
+        getLifecycle().addObserver(mSwitchBarController);
+        switchBar.show();
+    }
+
+    @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         addPreferencesFromResource(R.xml.user_settings);
         final Activity activity = getActivity();
-        if (!Utils.isDeviceProvisioned(getActivity())) {
+        if (!Utils.isDeviceProvisioned(activity)) {
             activity.finish();
             return;
         }
 
         mAddUserWhenLockedPreferenceController = new AddUserWhenLockedPreferenceController(
-                activity, KEY_ADD_USER_WHEN_LOCKED, getLifecycle());
+                activity, KEY_ADD_USER_WHEN_LOCKED);
+        mMultiUserFooterPreferenceController = new MultiUserFooterPreferenceController(activity)
+                .setFooterMixin(mFooterPreferenceMixin);
+
         final PreferenceScreen screen = getPreferenceScreen();
         mAddUserWhenLockedPreferenceController.displayPreference(screen);
+        mMultiUserFooterPreferenceController.displayPreference(screen);
 
         screen.findPreference(mAddUserWhenLockedPreferenceController.getPreferenceKey())
                 .setOnPreferenceChangeListener(mAddUserWhenLockedPreferenceController);
@@ -246,7 +268,7 @@
         mAddUser = (RestrictedPreference) findPreference(KEY_ADD_USER);
         mAddUser.useAdminDisabledSummary(false);
         // Determine if add user/profile button should be visible
-        if (mUserCaps.mCanAddUser && Utils.isDeviceProvisioned(getActivity())) {
+        if (mUserCaps.mCanAddUser && Utils.isDeviceProvisioned(activity)) {
             mAddUser.setVisible(true);
             mAddUser.setOnPreferenceClickListener(this);
             // change label to only mention user, if restricted profiles are not supported
@@ -260,8 +282,7 @@
         activity.registerReceiverAsUser(
                 mUserChangeReceiver, UserHandle.ALL, USER_REMOVED_INTENT_FILTER, null, mHandler);
 
-        loadProfile();
-        updateUserList();
+        updateUI();
         mShouldUpdateUserList = false;
     }
 
@@ -280,9 +301,7 @@
         }
 
         if (mShouldUpdateUserList) {
-            mUserCaps.updateAddUserCapabilities(getActivity());
-            loadProfile();
-            updateUserList();
+            updateUI();
         }
     }
 
@@ -343,6 +362,17 @@
         }
     }
 
+    @Override
+    public void onMultiUserSwitchChanged(boolean newState) {
+        updateUI();
+    }
+
+    private void updateUI() {
+        mUserCaps.updateAddUserCapabilities(getActivity());
+        loadProfile();
+        updateUserList();
+    }
+
     /**
      * Loads profile information for the current user.
      */
@@ -909,8 +939,6 @@
             loadIconsAsync(missingIcons);
         }
 
-        // Remove everything from mUserListCategory and add new users.
-        mUserListCategory.removeAll();
         // If profiles are supported, mUserListCategory will have a special title
         if (mUserCaps.mCanAddRestrictedProfile) {
             mUserListCategory.setTitle(R.string.user_list_title);
@@ -918,6 +946,20 @@
             mUserListCategory.setTitle(null);
         }
 
+        // Remove everything from mUserListCategory and add new users.
+        mUserListCategory.removeAll();
+
+        // If multi-user is disabled, just show footer and return.
+        final Preference addUserOnLockScreen = getPreferenceScreen().findPreference(
+                mAddUserWhenLockedPreferenceController.getPreferenceKey());
+        mAddUserWhenLockedPreferenceController.updateState(addUserOnLockScreen);
+        mMultiUserFooterPreferenceController.updateState(null /* preference */);
+        mAddUser.setVisible(mUserCaps.mUserSwitcherEnabled);
+        mUserListCategory.setVisible(mUserCaps.mUserSwitcherEnabled);
+        if (!mUserCaps.mUserSwitcherEnabled) {
+            return;
+        }
+
         for (UserPreference userPreference : userPreferences) {
             userPreference.setOrder(Preference.DEFAULT_ORDER);
             mUserListCategory.addPreference(userPreference);
@@ -925,7 +967,7 @@
 
         // Append Add user to the end of the list
         if ((mUserCaps.mCanAddUser || mUserCaps.mDisallowAddUserSetByAdmin) &&
-                Utils.isDeviceProvisioned(getActivity())) {
+                Utils.isDeviceProvisioned(context)) {
             boolean moreUsers = mUserManager.canAddMoreUsers();
             mAddUser.setEnabled(moreUsers && !mAddingUser);
             if (!moreUsers) {
@@ -938,7 +980,6 @@
                         mUserCaps.mDisallowAddUser ? mUserCaps.mEnforcedAdmin : null);
             }
         }
-
     }
 
     private int getMaxRealUsers() {
@@ -1190,8 +1231,7 @@
                 @Override
                 public List<String> getNonIndexableKeysFromXml(Context context, int xmlResId) {
                     final List<String> niks = super.getNonIndexableKeysFromXml(context, xmlResId);
-                    new AddUserWhenLockedPreferenceController(
-                            context, KEY_ADD_USER_WHEN_LOCKED, null /* lifecycle */)
+                    new AddUserWhenLockedPreferenceController(context, KEY_ADD_USER_WHEN_LOCKED)
                             .updateNonIndexableKeys(niks);
                     new AutoSyncDataPreferenceController(context, null /* parent */)
                             .updateNonIndexableKeys(niks);
diff --git a/tests/robotests/assets/grandfather_not_implementing_index_provider b/tests/robotests/assets/grandfather_not_implementing_index_provider
index 655346b..a55f024 100644
--- a/tests/robotests/assets/grandfather_not_implementing_index_provider
+++ b/tests/robotests/assets/grandfather_not_implementing_index_provider
@@ -7,7 +7,6 @@
 com.android.settings.accounts.ManagedProfileSettings
 com.android.settings.fuelgauge.PowerUsageAnomalyDetails
 com.android.settings.fuelgauge.AdvancedPowerUsageDetail
-com.android.settings.datausage.DataUsageSummaryLegacy
 com.android.settings.development.featureflags.FeatureFlagsDashboard
 com.android.settings.development.qstile.DevelopmentTileConfigFragment
 com.android.settings.deviceinfo.StorageProfileFragment
diff --git a/tests/robotests/src/com/android/settings/applications/AppStateNotificationBridgeTest.java b/tests/robotests/src/com/android/settings/applications/AppStateNotificationBridgeTest.java
index 9437a00..8e3bb42 100644
--- a/tests/robotests/src/com/android/settings/applications/AppStateNotificationBridgeTest.java
+++ b/tests/robotests/src/com/android/settings/applications/AppStateNotificationBridgeTest.java
@@ -36,17 +36,21 @@
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.app.usage.IUsageStatsManager;
 import android.app.usage.UsageEvents;
 import android.app.usage.UsageEvents.Event;
-import android.app.usage.UsageStatsManager;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.os.Looper;
 import android.os.Parcel;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.os.UserManager;
 import android.view.ViewGroup;
 import android.widget.Switch;
 
@@ -79,7 +83,9 @@
     @Mock
     private ApplicationsState mState;
     @Mock
-    private UsageStatsManager mUsageStats;
+    private IUsageStatsManager mUsageStats;
+    @Mock
+    private UserManager mUserManager;
     @Mock
     private NotificationBackend mBackend;
     private Context mContext;
@@ -92,10 +98,12 @@
         when(mState.getBackgroundLooper()).thenReturn(mock(Looper.class));
         when(mBackend.getNotificationsBanned(anyString(), anyInt())).thenReturn(true);
         when(mBackend.isSystemApp(any(), any())).thenReturn(true);
+        // most tests assume no work profile
+        when(mUserManager.getProfileIdsWithDisabled(anyInt())).thenReturn(new int[]{});
         mContext = RuntimeEnvironment.application.getApplicationContext();
 
         mBridge = new AppStateNotificationBridge(mContext, mState,
-                mock(AppStateBaseBridge.Callback.class), mUsageStats, mBackend);
+                mock(AppStateBaseBridge.Callback.class), mUsageStats, mUserManager, mBackend);
     }
 
     private AppEntry getMockAppEntry(String pkg) {
@@ -115,14 +123,15 @@
     }
 
     @Test
-    public void testGetAggregatedUsageEvents_noEvents() {
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(mock(UsageEvents.class));
+    public void testGetAggregatedUsageEvents_noEvents() throws Exception {
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(mock(UsageEvents.class));
 
         assertThat(mBridge.getAggregatedUsageEvents()).isEmpty();
     }
 
     @Test
-    public void testGetAggregatedUsageEvents_onlyNotificationEvents() {
+    public void testGetAggregatedUsageEvents_onlyNotificationEvents() throws Exception {
         List<Event> events = new ArrayList<>();
         Event good = new Event();
         good.mEventType = Event.NOTIFICATION_INTERRUPTION;
@@ -136,14 +145,15 @@
         events.add(bad);
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(usageEvents);
 
         Map<String, NotificationsSentState> map = mBridge.getAggregatedUsageEvents();
-        assertThat(map.get(PKG1).sentCount).isEqualTo(1);
+        assertThat(map.get(mBridge.getKey(0, PKG1)).sentCount).isEqualTo(1);
     }
 
     @Test
-    public void testGetAggregatedUsageEvents_multipleEventsAgg() {
+    public void testGetAggregatedUsageEvents_multipleEventsAgg() throws Exception {
         List<Event> events = new ArrayList<>();
         Event good = new Event();
         good.mEventType = Event.NOTIFICATION_INTERRUPTION;
@@ -157,15 +167,16 @@
         events.add(good1);
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(usageEvents);
 
         Map<String, NotificationsSentState> map  = mBridge.getAggregatedUsageEvents();
-        assertThat(map.get(PKG1).sentCount).isEqualTo(2);
-        assertThat(map.get(PKG1).lastSent).isEqualTo(6);
+        assertThat(map.get(mBridge.getKey(0, PKG1)).sentCount).isEqualTo(2);
+        assertThat(map.get(mBridge.getKey(0, PKG1)).lastSent).isEqualTo(6);
     }
 
     @Test
-    public void testGetAggregatedUsageEvents_multiplePkgs() {
+    public void testGetAggregatedUsageEvents_multiplePkgs() throws Exception {
         List<Event> events = new ArrayList<>();
         Event good = new Event();
         good.mEventType = Event.NOTIFICATION_INTERRUPTION;
@@ -179,19 +190,21 @@
         events.add(good1);
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(usageEvents);
 
         Map<String, NotificationsSentState> map
                 = mBridge.getAggregatedUsageEvents();
-        assertThat(map.get(PKG1).sentCount).isEqualTo(1);
-        assertThat(map.get(PKG2).sentCount).isEqualTo(1);
-        assertThat(map.get(PKG1).lastSent).isEqualTo(6);
-        assertThat(map.get(PKG2).lastSent).isEqualTo(1);
+        assertThat(map.get(mBridge.getKey(0, PKG1)).sentCount).isEqualTo(1);
+        assertThat(map.get(mBridge.getKey(0, PKG2)).sentCount).isEqualTo(1);
+        assertThat(map.get(mBridge.getKey(0, PKG1)).lastSent).isEqualTo(6);
+        assertThat(map.get(mBridge.getKey(0, PKG2)).lastSent).isEqualTo(1);
     }
 
     @Test
-    public void testLoadAllExtraInfo_noEvents() {
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(mock(UsageEvents.class));
+    public void testLoadAllExtraInfo_noEvents() throws RemoteException {
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(mock(UsageEvents.class));
         ArrayList<AppEntry> apps = new ArrayList<>();
         apps.add(getMockAppEntry(PKG1));
         when(mSession.getAllApps()).thenReturn(apps);
@@ -201,7 +214,7 @@
     }
 
     @Test
-    public void testLoadAllExtraInfo_multipleEventsAgg() {
+    public void testLoadAllExtraInfo_multipleEventsAgg() throws RemoteException {
         List<Event> events = new ArrayList<>();
         for (int i = 0; i < 7; i++) {
             Event good = new Event();
@@ -212,7 +225,8 @@
         }
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(usageEvents);
 
         ArrayList<AppEntry> apps = new ArrayList<>();
         apps.add(getMockAppEntry(PKG1));
@@ -229,7 +243,7 @@
     }
 
     @Test
-    public void testLoadAllExtraInfo_multiplePkgs() {
+    public void testLoadAllExtraInfo_multiplePkgs() throws RemoteException {
         List<Event> events = new ArrayList<>();
         for (int i = 0; i < 8; i++) {
             Event good = new Event();
@@ -245,7 +259,8 @@
         events.add(good1);
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), anyInt(), anyString()))
+                .thenReturn(usageEvents);
 
         ArrayList<AppEntry> apps = new ArrayList<>();
         apps.add(getMockAppEntry(PKG1));
@@ -265,8 +280,66 @@
     }
 
     @Test
-    public void testUpdateExtraInfo_noEvents() {
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(mock(UsageEvents.class));
+    public void testLoadAllExtraInfo_multipleUsers() throws RemoteException {
+        // has work profile
+        when(mUserManager.getProfileIdsWithDisabled(anyInt())).thenReturn(new int[]{1});
+        mBridge = new AppStateNotificationBridge(mContext, mState,
+                mock(AppStateBaseBridge.Callback.class), mUsageStats, mUserManager, mBackend);
+
+        List<Event> eventsProfileOwner = new ArrayList<>();
+        for (int i = 0; i < 8; i++) {
+            Event good = new Event();
+            good.mEventType = Event.NOTIFICATION_INTERRUPTION;
+            good.mPackage = PKG1;
+            good.mTimeStamp = i;
+            eventsProfileOwner.add(good);
+        }
+
+        List<Event> eventsProfile = new ArrayList<>();
+        for (int i = 0; i < 4; i++) {
+            Event good = new Event();
+            good.mEventType = Event.NOTIFICATION_INTERRUPTION;
+            good.mPackage = PKG1;
+            good.mTimeStamp = i;
+            eventsProfile.add(good);
+        }
+
+        UsageEvents usageEventsOwner = getUsageEvents(eventsProfileOwner);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), eq(0), anyString()))
+                .thenReturn(usageEventsOwner);
+
+        UsageEvents usageEventsProfile = getUsageEvents(eventsProfile);
+        when(mUsageStats.queryEventsForUser(anyLong(), anyLong(), eq(1), anyString()))
+                .thenReturn(usageEventsProfile);
+
+        ArrayList<AppEntry> apps = new ArrayList<>();
+        AppEntry owner = getMockAppEntry(PKG1);
+        owner.info.uid = 1;
+        apps.add(owner);
+
+        AppEntry profile = getMockAppEntry(PKG1);
+        profile.info.uid = UserHandle.PER_USER_RANGE + 1;
+        apps.add(profile);
+        when(mSession.getAllApps()).thenReturn(apps);
+
+        mBridge.loadAllExtraInfo();
+
+        assertThat(((NotificationsSentState) apps.get(0).extraInfo).sentCount).isEqualTo(8);
+        assertThat(((NotificationsSentState) apps.get(0).extraInfo).lastSent).isEqualTo(7);
+        assertThat(((NotificationsSentState) apps.get(0).extraInfo).avgSentWeekly).isEqualTo(0);
+        assertThat(((NotificationsSentState) apps.get(0).extraInfo).avgSentDaily).isEqualTo(1);
+
+        assertThat(((NotificationsSentState) apps.get(1).extraInfo).sentCount).isEqualTo(4);
+        assertThat(((NotificationsSentState) apps.get(1).extraInfo).lastSent).isEqualTo(3);
+        assertThat(((NotificationsSentState) apps.get(1).extraInfo).avgSentWeekly).isEqualTo(4);
+        assertThat(((NotificationsSentState) apps.get(1).extraInfo).avgSentDaily).isEqualTo(1);
+    }
+
+    @Test
+    public void testUpdateExtraInfo_noEvents() throws RemoteException {
+        when(mUsageStats.queryEventsForPackageForUser(
+                anyLong(), anyLong(), anyInt(), anyString(), anyString()))
+                .thenReturn(mock(UsageEvents.class));
         AppEntry entry = getMockAppEntry(PKG1);
 
         mBridge.updateExtraInfo(entry, "", 0);
@@ -274,7 +347,7 @@
     }
 
     @Test
-    public void testUpdateExtraInfo_multipleEventsAgg() {
+    public void testUpdateExtraInfo_multipleEventsAgg() throws RemoteException {
         List<Event> events = new ArrayList<>();
         for (int i = 0; i < 13; i++) {
             Event good = new Event();
@@ -285,7 +358,8 @@
         }
 
         UsageEvents usageEvents = getUsageEvents(events);
-        when(mUsageStats.queryEvents(anyLong(), anyLong())).thenReturn(usageEvents);
+        when(mUsageStats.queryEventsForPackageForUser(
+                anyLong(), anyLong(), anyInt(), anyString(), anyString())).thenReturn(usageEvents);
 
         AppEntry entry = getMockAppEntry(PKG1);
         mBridge.updateExtraInfo(entry, "", 0);
diff --git a/tests/robotests/src/com/android/settings/applications/manageapplications/ManageApplicationsTest.java b/tests/robotests/src/com/android/settings/applications/manageapplications/ManageApplicationsTest.java
index af297c4..8943d72 100644
--- a/tests/robotests/src/com/android/settings/applications/manageapplications/ManageApplicationsTest.java
+++ b/tests/robotests/src/com/android/settings/applications/manageapplications/ManageApplicationsTest.java
@@ -16,14 +16,14 @@
 
 package com.android.settings.applications.manageapplications;
 
-import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_DRAGGING;
-import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
-import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_ALL;
-import static com.android.settings.applications.manageapplications.ManageApplications.LIST_TYPE_MAIN;
-import static com.android.settings.applications.manageapplications.ManageApplications.LIST_TYPE_NOTIFICATION;
-import static com.google.common.truth.Truth.assertThat;
+import static com.android.settings.applications.manageapplications.AppFilterRegistry
+        .FILTER_APPS_ALL;
+import static com.android.settings.applications.manageapplications.ManageApplications
+        .LIST_TYPE_MAIN;
+import static com.android.settings.applications.manageapplications.ManageApplications
+        .LIST_TYPE_NOTIFICATION;
 
-import static junit.framework.Assert.assertEquals;
+import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.Matchers.any;
@@ -36,11 +36,14 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_DRAGGING;
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
+
 import android.app.Activity;
 import android.content.Context;
 import android.os.Bundle;
 import android.os.Looper;
-import androidx.recyclerview.widget.RecyclerView;
+import android.os.UserManager;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -63,6 +66,8 @@
 
 import java.util.ArrayList;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 @RunWith(SettingsRobolectricTestRunner.class)
 public class ManageApplicationsTest {
 
@@ -272,6 +277,10 @@
     @Test
     public void applicationsAdapter_onBindViewHolder_updateSwitch_notifications() {
         ManageApplications manageApplications = mock(ManageApplications.class);
+        when(manageApplications.getActivity()).thenReturn(mock(Activity.class));
+        UserManager um = mock(UserManager.class);
+        when(um.getProfileIdsWithDisabled(anyInt())).thenReturn(new int[]{});
+        ReflectionHelpers.setField(manageApplications, "mUserManager", um);
         manageApplications.mListType = LIST_TYPE_NOTIFICATION;
         ApplicationViewHolder holder = mock(ApplicationViewHolder.class);
         ReflectionHelpers.setField(holder, "itemView", mock(View.class));
@@ -293,6 +302,9 @@
         manageApplications.mListType = LIST_TYPE_MAIN;
         ApplicationViewHolder holder = mock(ApplicationViewHolder.class);
         ReflectionHelpers.setField(holder, "itemView", mock(View.class));
+        UserManager um = mock(UserManager.class);
+        when(um.getProfileIdsWithDisabled(anyInt())).thenReturn(new int[]{});
+        ReflectionHelpers.setField(manageApplications, "mUserManager", um);
         ManageApplications.ApplicationsAdapter adapter =
                 new ManageApplications.ApplicationsAdapter(mState,
                         manageApplications, mock(AppFilterItem.class),
@@ -308,6 +320,10 @@
     @Test
     public void sortOrderSavedOnRebuild() {
         ManageApplications manageApplications = mock(ManageApplications.class);
+        when(manageApplications.getActivity()).thenReturn(mock(Activity.class));
+        UserManager um = mock(UserManager.class);
+        when(um.getProfileIdsWithDisabled(anyInt())).thenReturn(new int[]{});
+        ReflectionHelpers.setField(manageApplications, "mUserManager", um);
         manageApplications.mListType = LIST_TYPE_NOTIFICATION;
         manageApplications.mSortOrder = -1;
         ManageApplications.ApplicationsAdapter adapter =
diff --git a/tests/robotests/src/com/android/settings/dashboard/conditional/BackgroundDataConditionTest.java b/tests/robotests/src/com/android/settings/dashboard/conditional/BackgroundDataConditionTest.java
index 9b5bec3..725be79 100644
--- a/tests/robotests/src/com/android/settings/dashboard/conditional/BackgroundDataConditionTest.java
+++ b/tests/robotests/src/com/android/settings/dashboard/conditional/BackgroundDataConditionTest.java
@@ -22,10 +22,8 @@
 
 import android.content.Context;
 import android.content.Intent;
-import android.util.FeatureFlagUtils;
 
 import com.android.settings.Settings;
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 
 import org.junit.Before;
@@ -51,9 +49,7 @@
     }
 
     @Test
-    public void onPrimaryClick_v2enabled_shouldReturn2SummaryActivity() {
-        FeatureFlagUtils.setEnabled(mContext, FeatureFlags.DATA_USAGE_SETTINGS_V2, true);
-
+    public void onPrimaryClick_shouldReturn2SummaryActivity() {
         final ArgumentCaptor<Intent> argumentCaptor = ArgumentCaptor.forClass(Intent.class);
         BackgroundDataCondition backgroundDataCondition
                 = new BackgroundDataCondition(mConditionManager);
@@ -64,19 +60,4 @@
         assertThat(intent.getComponent().getClassName()).isEqualTo(
                 Settings.DataUsageSummaryActivity.class.getName());
     }
-
-    @Test
-    public void onPrimaryClick_v2disabled_shouldReturnLegacySummaryActivity() {
-        FeatureFlagUtils.setEnabled(mContext, FeatureFlags.DATA_USAGE_SETTINGS_V2, false);
-
-        final ArgumentCaptor<Intent> argumentCaptor = ArgumentCaptor.forClass(Intent.class);
-        BackgroundDataCondition backgroundDataCondition
-                = new BackgroundDataCondition(mConditionManager);
-        backgroundDataCondition.onPrimaryClick();
-        verify(mContext).startActivity(argumentCaptor.capture());
-        Intent intent = argumentCaptor.getValue();
-
-        assertThat(intent.getComponent().getClassName()).isEqualTo(
-                Settings.DataUsageSummaryLegacyActivity.class.getName());
-    }
 }
diff --git a/tests/robotests/src/com/android/settings/datausage/BillingCycleSettingsTest.java b/tests/robotests/src/com/android/settings/datausage/BillingCycleSettingsTest.java
index e4ed8bf..2d44628 100644
--- a/tests/robotests/src/com/android/settings/datausage/BillingCycleSettingsTest.java
+++ b/tests/robotests/src/com/android/settings/datausage/BillingCycleSettingsTest.java
@@ -31,12 +31,7 @@
 import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.os.Bundle;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceManager;
-import androidx.preference.SwitchPreference;
-import android.util.FeatureFlagUtils;
 
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settingslib.NetworkPolicyEditor;
 
@@ -47,6 +42,10 @@
 import org.mockito.MockitoAnnotations;
 import org.robolectric.RuntimeEnvironment;
 
+import androidx.preference.Preference;
+import androidx.preference.PreferenceManager;
+import androidx.preference.SwitchPreference;
+
 @RunWith(SettingsRobolectricTestRunner.class)
 public class BillingCycleSettingsTest {
 
@@ -108,14 +107,12 @@
     }
 
     @Test
-    public void testDataUsageSummary_shouldBeNullWithV2() {
+    public void testDataUsageSummary_shouldBeNull() {
         final BillingCycleSettings billingCycleSettings = spy(new BillingCycleSettings());
         when(billingCycleSettings.getContext()).thenReturn(mContext);
         billingCycleSettings.setUpForTest(mNetworkPolicyEditor, mBillingCycle,
                 mDataLimit, mDataWarning, mEnableDataLimit, mEnableDataWarning);
 
-        FeatureFlagUtils.setEnabled(mContext, FeatureFlags.DATA_USAGE_SETTINGS_V2, true);
-
         doReturn("some-string").when(billingCycleSettings).getString(anyInt(), anyInt());
         when(mNetworkPolicyEditor.getPolicyCycleDay(anyObject())).thenReturn(CYCLE_NONE + 1);
         when(mNetworkPolicyEditor.getPolicyLimitBytes(anyObject())).thenReturn(2000L);
diff --git a/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryLegacyTest.java b/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryLegacyTest.java
deleted file mode 100644
index 2216792..0000000
--- a/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryLegacyTest.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-
-package com.android.settings.datausage;
-
-import static com.google.common.truth.Truth.assertThat;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.net.ConnectivityManager;
-import android.text.format.Formatter;
-
-import com.android.settings.R;
-import com.android.settings.testutils.SettingsRobolectricTestRunner;
-import com.android.settings.testutils.shadow.SettingsShadowResources;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.robolectric.shadows.ShadowApplication;
-
-@RunWith(SettingsRobolectricTestRunner.class)
-public class DataUsageSummaryLegacyTest {
-
-    @Mock
-    private ConnectivityManager mManager;
-    private Context mContext;
-
-    /**
-     * This set up is contrived to get a passing test so that the build doesn't block without tests.
-     * These tests should be updated as code gets refactored to improve testability.
-     */
-
-    @Before
-    public void setUp() {
-        MockitoAnnotations.initMocks(this);
-        ShadowApplication shadowContext = ShadowApplication.getInstance();
-        shadowContext.setSystemService(Context.CONNECTIVITY_SERVICE, mManager);
-        mContext = shadowContext.getApplicationContext();
-        when(mManager.isNetworkSupported(anyInt())).thenReturn(true);
-    }
-
-    @Test
-    public void formatUsage_shouldLookLikeFormatFileSize() {
-        SettingsShadowResources
-            .overrideResource(com.android.internal.R.string.fileSizeSuffix, "%1$s %2$s");
-        final long usage = 2147483648L; // 2GB
-        final String formattedUsage =
-                DataUsageSummaryLegacy.formatUsage(mContext, "^1", usage).toString();
-        final String formattedAsFileSize = Formatter.formatFileSize(mContext, usage);
-        assertThat(formattedUsage).isEqualTo(formattedAsFileSize);
-    }
-}
diff --git a/tests/robotests/src/com/android/settings/gestures/PreventRingingParentPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/gestures/PreventRingingParentPreferenceControllerTest.java
index 33a00fa..bffc847 100644
--- a/tests/robotests/src/com/android/settings/gestures/PreventRingingParentPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/gestures/PreventRingingParentPreferenceControllerTest.java
@@ -16,14 +16,25 @@
 
 package com.android.settings.gestures;
 
+import static android.provider.Settings.Secure.VOLUME_HUSH_GESTURE;
+import static android.provider.Settings.Secure.VOLUME_HUSH_MUTE;
+import static android.provider.Settings.Secure.VOLUME_HUSH_OFF;
+import static android.provider.Settings.Secure.VOLUME_HUSH_VIBRATE;
+
 import static com.android.settings.core.BasePreferenceController.AVAILABLE_UNSEARCHABLE;
+
 import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
 import android.content.res.Resources;
+import android.provider.Settings;
 
+import com.android.settings.R;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 
 import org.junit.Before;
@@ -41,18 +52,20 @@
 
     private Context mContext;
     private PreventRingingParentPreferenceController mController;
+    private final String VIBRATE_SUMMARY = "On (vibrate)";
+    private final String MUTE_SUMMARY = "On (mute)";
+    private final String NONE_SUMMARY = "Off";
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
-        mContext = spy(RuntimeEnvironment.application);
-        when(mContext.getResources()).thenReturn(mResources);
-
+        mContext = spy(RuntimeEnvironment.application.getApplicationContext());
         mController = new PreventRingingParentPreferenceController(mContext, "test_key");
     }
 
     @Test
     public void testIsAvailable_configIsTrue_shouldAvailableUnSearchable() {
+        when(mContext.getResources()).thenReturn(mResources);
         when(mResources.getBoolean(
                 com.android.internal.R.bool.config_volumeHushGestureEnabled)).thenReturn(true);
 
@@ -61,9 +74,28 @@
 
     @Test
     public void testIsAvailable_configIsFalse_shouldReturnFalse() {
+        when(mContext.getResources()).thenReturn(mResources);
         when(mResources.getBoolean(
                 com.android.internal.R.bool.config_volumeHushGestureEnabled)).thenReturn(false);
 
         assertThat(mController.isAvailable()).isFalse();
     }
+
+    @Test
+    public void updateState_summaryUpdated() {
+        Settings.Secure.putInt(mContext.getContentResolver(), VOLUME_HUSH_GESTURE,
+                VOLUME_HUSH_MUTE);
+        assertThat(mController.getSummary()).isEqualTo(mContext.getResources().getText(
+                R.string.prevent_ringing_option_mute_summary));
+
+        Settings.Secure.putInt(mContext.getContentResolver(), VOLUME_HUSH_GESTURE,
+                VOLUME_HUSH_VIBRATE);
+        assertThat(mController.getSummary()).isEqualTo(mContext.getResources().getText(
+                R.string.prevent_ringing_option_vibrate_summary));
+
+        Settings.Secure.putInt(mContext.getContentResolver(), VOLUME_HUSH_GESTURE,
+                VOLUME_HUSH_OFF);
+        assertThat(mController.getSummary()).isEqualTo(mContext.getResources().getText(
+                R.string.prevent_ringing_option_none_summary));
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/gestures/PreventRingingPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/gestures/PreventRingingPreferenceControllerTest.java
index 833a09d..514bb58 100644
--- a/tests/robotests/src/com/android/settings/gestures/PreventRingingPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/gestures/PreventRingingPreferenceControllerTest.java
@@ -88,29 +88,6 @@
     }
 
     @Test
-    public void testGetSummary_mute() {
-        Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.VOLUME_HUSH_GESTURE,
-                Settings.Secure.VOLUME_HUSH_MUTE);
-        assertEquals(mContext.getString(R.string.prevent_ringing_option_mute_summary),
-                mController.getSummary());
-    }
-
-    @Test
-    public void testGetSummary_vibrate() {
-        Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.VOLUME_HUSH_GESTURE,
-                Settings.Secure.VOLUME_HUSH_VIBRATE);
-        assertEquals(mContext.getString(R.string.prevent_ringing_option_vibrate_summary),
-                mController.getSummary());
-    }
-    @Test
-    public void testGetSummary_other() {
-        Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.VOLUME_HUSH_GESTURE,
-                7);
-        assertEquals(mContext.getString(R.string.prevent_ringing_option_none_summary),
-                mController.getSummary());
-    }
-
-    @Test
     public void testUpdateState_mute() {
         ListPreference pref = mock(ListPreference.class);
         Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.VOLUME_HUSH_GESTURE,
diff --git a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowUserManager.java b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowUserManager.java
index df87536..753d159 100644
--- a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowUserManager.java
+++ b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowUserManager.java
@@ -47,6 +47,8 @@
     private final Set<Integer> mManagedProfiles = new HashSet<>();
     private boolean mIsQuietModeEnabled = false;
     private int[] profileIdsForUser;
+    private boolean mUserSwitchEnabled;
+
 
     @Resetter
     public void reset() {
@@ -56,6 +58,7 @@
         mRestrictionSources.clear();
         mManagedProfiles.clear();
         mIsQuietModeEnabled = false;
+        mUserSwitchEnabled = false;
     }
 
     public void setUserInfo(int userHandle, UserInfo userInfo) {
@@ -136,4 +139,13 @@
     public void setProfileIdsWithDisabled(int[] profileIds) {
         profileIdsForUser = profileIds;
     }
+
+    @Implementation
+    public boolean isUserSwitcherEnabled() {
+        return mUserSwitchEnabled;
+    }
+
+    public void setUserSwitcherEnabled(boolean userSwitchEnabled) {
+        mUserSwitchEnabled = userSwitchEnabled;
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/users/AddUserWhenLockedPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/users/AddUserWhenLockedPreferenceControllerTest.java
index 10b2acb..c2b1c9f 100644
--- a/tests/robotests/src/com/android/settings/users/AddUserWhenLockedPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/users/AddUserWhenLockedPreferenceControllerTest.java
@@ -17,58 +17,59 @@
 
 import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Answers.RETURNS_DEEP_STUBS;
-import static org.mockito.Matchers.anyInt;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import androidx.lifecycle.LifecycleOwner;
 import android.content.Context;
 import android.content.pm.UserInfo;
-import android.os.UserManager;
 import android.provider.Settings.Global;
-import androidx.preference.PreferenceScreen;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 import com.android.settingslib.RestrictedSwitchPreference;
-import com.android.settingslib.core.lifecycle.Lifecycle;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
 import org.robolectric.shadows.ShadowApplication;
 
+import androidx.preference.PreferenceScreen;
+
 @RunWith(SettingsRobolectricTestRunner.class)
+@Config(shadows = {ShadowUserManager.class})
 public class AddUserWhenLockedPreferenceControllerTest {
 
     @Mock(answer = RETURNS_DEEP_STUBS)
     private PreferenceScreen mScreen;
     @Mock(answer = RETURNS_DEEP_STUBS)
     private UserInfo mUserInfo;
-    @Mock(answer = RETURNS_DEEP_STUBS)
-    private UserManager mUserManager;
 
-    private LifecycleOwner mLifecycleOwner;
-    private Lifecycle mLifecycle;
     private Context mContext;
+    private ShadowUserManager mUserManager;
     private AddUserWhenLockedPreferenceController mController;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
         ShadowApplication shadowContext = ShadowApplication.getInstance();
-        shadowContext.setSystemService(Context.USER_SERVICE, mUserManager);
+        mUserManager = ShadowUserManager.getShadow();
         mContext = shadowContext.getApplicationContext();
-        mLifecycleOwner = () -> mLifecycle;
-        mLifecycle = new Lifecycle(mLifecycleOwner);
-        mController = new AddUserWhenLockedPreferenceController(mContext, "fake_key", mLifecycle);
+        mController = new AddUserWhenLockedPreferenceController(mContext, "fake_key");
+    }
+
+    @After
+    public void tearDown() {
+        mUserManager.reset();
     }
 
     @Test
     public void displayPref_NotAdmin_shouldNotDisplay() {
-        when(mUserManager.getUserInfo(anyInt())).thenReturn(mUserInfo);
+        mUserManager.setUserInfo(0, mUserInfo);
         when(mUserInfo.isAdmin()).thenReturn(false);
         final RestrictedSwitchPreference preference = mock(RestrictedSwitchPreference.class);
         when(preference.getKey()).thenReturn(mController.getPreferenceKey());
diff --git a/tests/robotests/src/com/android/settings/users/MultiUserFooterPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/users/MultiUserFooterPreferenceControllerTest.java
new file mode 100644
index 0000000..f74de7a
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/users/MultiUserFooterPreferenceControllerTest.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.users;
+
+import static com.android.settings.core.BasePreferenceController.AVAILABLE_UNSEARCHABLE;
+import static com.android.settings.core.BasePreferenceController.DISABLED_FOR_USER;
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class MultiUserFooterPreferenceControllerTest {
+
+    private Context mContext;
+    private MultiUserFooterPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mController = new MultiUserFooterPreferenceController(mContext);
+    }
+
+    @Test
+    public void getAvailabilityStatus_multiUserOff_shouldReturnEnabled() {
+        mController.mUserCaps.mEnabled = true;
+        mController.mUserCaps.mUserSwitcherEnabled = false;
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE_UNSEARCHABLE);
+    }
+
+    @Test
+    public void getAvailabilityStatus_multiUserOn_shouldReturnDisabled() {
+        mController.mUserCaps.mEnabled = true;
+        mController.mUserCaps.mUserSwitcherEnabled = true;
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(DISABLED_FOR_USER);
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/users/UserCapabilitiesTest.java b/tests/robotests/src/com/android/settings/users/UserCapabilitiesTest.java
index d85f2fa..c8d3685 100644
--- a/tests/robotests/src/com/android/settings/users/UserCapabilitiesTest.java
+++ b/tests/robotests/src/com/android/settings/users/UserCapabilitiesTest.java
@@ -17,36 +17,43 @@
 package com.android.settings.users;
 
 import static com.google.common.truth.Truth.assertThat;
-import static org.mockito.Mockito.when;
 
 import android.content.Context;
+import android.os.UserHandle;
 import android.os.UserManager;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
 
 @RunWith(SettingsRobolectricTestRunner.class)
+@Config(shadows = {ShadowUserManager.class})
 public class UserCapabilitiesTest {
 
-    @Mock
     private Context mContext;
-    @Mock
-    private UserManager mUserManager;
+    private ShadowUserManager mUserManager;
 
     @Before
     public void setUp() {
-        MockitoAnnotations.initMocks(this);
-        when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);
+        mContext = RuntimeEnvironment.application;
+        mUserManager = ShadowUserManager.getShadow();
+    }
+
+    @After
+    public void tearDown() {
+        mUserManager.reset();
     }
 
     @Test
-    public void disallowUserSwitchWhenRestrictionIsSet() {
-        when(mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH)).thenReturn(true);
+    public void disallowUserSwitch_restrictionIsSet_true() {
+        mUserManager.setUserRestriction(UserHandle.of(UserHandle.myUserId()),
+                UserManager.DISALLOW_USER_SWITCH, true);
 
         UserCapabilities userCapabilities = UserCapabilities.create(mContext);
         userCapabilities.updateAddUserCapabilities(mContext);
@@ -55,12 +62,33 @@
     }
 
     @Test
-    public void allowUserSwitchWhenRestrictionIsNotSet() {
-        when(mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH)).thenReturn(false);
+    public void disallowUserSwitch_restrictionIsNotSet_false() {
+        mUserManager.setUserRestriction(UserHandle.of(UserHandle.myUserId()),
+                UserManager.DISALLOW_USER_SWITCH, false);
 
         UserCapabilities userCapabilities = UserCapabilities.create(mContext);
         userCapabilities.updateAddUserCapabilities(mContext);
 
         assertThat(userCapabilities.mDisallowSwitchUser).isFalse();
     }
+
+    @Test
+    public void userSwitchEnabled_off() {
+        mUserManager.setUserSwitcherEnabled(false);
+
+        final UserCapabilities userCapabilities = UserCapabilities.create(mContext);
+        userCapabilities.updateAddUserCapabilities(mContext);
+
+        assertThat(userCapabilities.mUserSwitcherEnabled).isFalse();
+    }
+
+    @Test
+    public void userSwitchEnabled_on() {
+        mUserManager.setUserSwitcherEnabled(true);
+
+        final UserCapabilities userCapabilities = UserCapabilities.create(mContext);
+        userCapabilities.updateAddUserCapabilities(mContext);
+
+        assertThat(userCapabilities.mUserSwitcherEnabled).isTrue();
+    }
 }
diff --git a/tests/uitests/src/com/android/settings/ui/inputmethods/DataSaverSummaryUITest.java b/tests/uitests/src/com/android/settings/ui/inputmethods/DataSaverSummaryUITest.java
index f6f5d43..45f757c 100644
--- a/tests/uitests/src/com/android/settings/ui/inputmethods/DataSaverSummaryUITest.java
+++ b/tests/uitests/src/com/android/settings/ui/inputmethods/DataSaverSummaryUITest.java
@@ -44,7 +44,7 @@
         mInstrumentation = InstrumentationRegistry.getInstrumentation();
         mUiDevice = UiDevice.getInstance(mInstrumentation);
         mIntent = new Intent().setClassName("com.android.settings",
-                "com.android.settings.Settings$DataUsageSummaryLegacyActivity")
+                "com.android.settings.Settings$DataUsageSummaryActivity")
                 .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     }