Merge "resolve merge conflicts of 0c62aa5 to master"
diff --git a/api/current.txt b/api/current.txt
index 89573ac..395d7aa 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -12733,7 +12733,6 @@
     field public static final int RGBA_8888 = 1; // 0x1
     field public static final int RGBA_F16 = 22; // 0x16
     field public static final int RGBX_8888 = 2; // 0x2
-    field public static final int RGBX_F16 = 23; // 0x17
     field public static final deprecated int RGB_332 = 11; // 0xb
     field public static final int RGB_565 = 4; // 0x4
     field public static final int RGB_888 = 3; // 0x3
diff --git a/api/system-current.txt b/api/system-current.txt
index 870070b..8bedf98 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -13226,7 +13226,6 @@
     field public static final int RGBA_8888 = 1; // 0x1
     field public static final int RGBA_F16 = 22; // 0x16
     field public static final int RGBX_8888 = 2; // 0x2
-    field public static final int RGBX_F16 = 23; // 0x17
     field public static final deprecated int RGB_332 = 11; // 0xb
     field public static final int RGB_565 = 4; // 0x4
     field public static final int RGB_888 = 3; // 0x3
diff --git a/api/test-current.txt b/api/test-current.txt
index 10554ff..e43d1b5 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -12764,7 +12764,6 @@
     field public static final int RGBA_8888 = 1; // 0x1
     field public static final int RGBA_F16 = 22; // 0x16
     field public static final int RGBX_8888 = 2; // 0x2
-    field public static final int RGBX_F16 = 23; // 0x17
     field public static final deprecated int RGB_332 = 11; // 0xb
     field public static final int RGB_565 = 4; // 0x4
     field public static final int RGB_888 = 3; // 0x3
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 74aded6..32bf66a 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -3789,6 +3789,8 @@
                     ApplicationInfo.PRIVATE_FLAG_PARTIALLY_DIRECT_BOOT_AWARE;
         }
 
+        final boolean hasVisibleToEphemeral =
+                sa.hasValue(R.styleable.AndroidManifestActivity_visibleToEphemeral);
         final boolean isEphemeral = ((flags & PARSE_IS_EPHEMERAL) != 0);
         final boolean visibleToEphemeral = isEphemeral
                 || sa.getBoolean(R.styleable.AndroidManifestActivity_visibleToEphemeral, false);
@@ -3827,7 +3829,7 @@
                     return null;
                 }
                 intent.setEphemeral(isEphemeral);
-                intent.setVisibleToEphemeral(visibleToEphemeral);
+                intent.setVisibleToEphemeral(visibleToEphemeral || isWebBrowsableIntent(intent));
                 if (intent.countActions() == 0) {
                     Slog.w(TAG, "No actions in intent filter at "
                             + mArchiveSourcePath + " "
@@ -3835,6 +3837,10 @@
                 } else {
                     a.intents.add(intent);
                 }
+                // adjust activity flags when we implicitly expose it via a browsable filter
+                if (!hasVisibleToEphemeral && intent.isVisibleToEphemeral()) {
+                    a.info.flags |= ActivityInfo.FLAG_VISIBLE_TO_EPHEMERAL;
+                }
             } else if (!receiver && parser.getName().equals("preferred")) {
                 ActivityIntentInfo intent = new ActivityIntentInfo(a);
                 if (!parseIntent(res, parser, false /*allowGlobs*/, false /*allowAutoVerify*/,
@@ -3842,7 +3848,7 @@
                     return null;
                 }
                 intent.setEphemeral(isEphemeral);
-                intent.setVisibleToEphemeral(visibleToEphemeral);
+                intent.setVisibleToEphemeral(visibleToEphemeral || isWebBrowsableIntent(intent));
                 if (intent.countActions() == 0) {
                     Slog.w(TAG, "No actions in preferred at "
                             + mArchiveSourcePath + " "
@@ -3853,6 +3859,10 @@
                     }
                     owner.preferredActivityFilters.add(intent);
                 }
+                // adjust activity flags when we implicitly expose it via a browsable filter
+                if (!hasVisibleToEphemeral && intent.isVisibleToEphemeral()) {
+                    a.info.flags |= ActivityInfo.FLAG_VISIBLE_TO_EPHEMERAL;
+                }
             } else if (parser.getName().equals("meta-data")) {
                 if ((a.metaData = parseMetaData(res, parser, a.metaData,
                         outError)) == null) {
@@ -4093,6 +4103,7 @@
             }
         }
 
+        // TODO add visibleToInstantApp attribute to activity alias
         final boolean isEphemeral = ((flags & PARSE_IS_EPHEMERAL) != 0);
         final boolean visibleToEphemeral = isEphemeral
                 || ((a.info.flags & ActivityInfo.FLAG_VISIBLE_TO_EPHEMERAL) != 0);
@@ -4124,9 +4135,14 @@
                             + parser.getPositionDescription());
                 } else {
                     intent.setEphemeral(isEphemeral);
-                    intent.setVisibleToEphemeral(visibleToEphemeral);
+                    intent.setVisibleToEphemeral(visibleToEphemeral
+                            || isWebBrowsableIntent(intent));
                     a.intents.add(intent);
                 }
+                // adjust activity flags when we implicitly expose it via a browsable filter
+                if (intent.isVisibleToEphemeral()) {
+                    a.info.flags |= ActivityInfo.FLAG_VISIBLE_TO_EPHEMERAL;
+                }
             } else if (parser.getName().equals("meta-data")) {
                 if ((a.metaData=parseMetaData(res, parser, a.metaData,
                         outError)) == null) {
@@ -4262,6 +4278,8 @@
                     ApplicationInfo.PRIVATE_FLAG_PARTIALLY_DIRECT_BOOT_AWARE;
         }
 
+        final boolean hasVisibleToEphemeral =
+                sa.hasValue(R.styleable.AndroidManifestProvider_visibleToEphemeral);
         final boolean isEphemeral = ((flags & PARSE_IS_EPHEMERAL) != 0);
         final boolean visibleToEphemeral = isEphemeral
                 || sa.getBoolean(R.styleable.AndroidManifestProvider_visibleToEphemeral, false);
@@ -4291,7 +4309,8 @@
         }
         p.info.authority = cpname.intern();
 
-        if (!parseProviderTags(res, parser, isEphemeral, visibleToEphemeral, p, outError)) {
+        if (!parseProviderTags(
+                res, parser, isEphemeral, hasVisibleToEphemeral, visibleToEphemeral, p, outError)) {
             return null;
         }
 
@@ -4299,8 +4318,9 @@
     }
 
     private boolean parseProviderTags(Resources res, XmlResourceParser parser,
-            boolean isEphemeral, boolean visibleToEphemeral, Provider outInfo, String[] outError)
-            throws XmlPullParserException, IOException {
+            boolean isEphemeral, boolean hasVisibleToEphemeral, boolean visibleToEphemeral,
+            Provider outInfo, String[] outError)
+                    throws XmlPullParserException, IOException {
         int outerDepth = parser.getDepth();
         int type;
         while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
@@ -4317,8 +4337,12 @@
                     return false;
                 }
                 intent.setEphemeral(isEphemeral);
-                intent.setVisibleToEphemeral(visibleToEphemeral);
+                intent.setVisibleToEphemeral(visibleToEphemeral || isWebBrowsableIntent(intent));
                 outInfo.intents.add(intent);
+                // adjust provider flags when we implicitly expose it via a browsable filter
+                if (!hasVisibleToEphemeral && intent.isVisibleToEphemeral()) {
+                    outInfo.info.flags |= ProviderInfo.FLAG_VISIBLE_TO_EPHEMERAL;
+                }
 
             } else if (parser.getName().equals("meta-data")) {
                 if ((outInfo.metaData=parseMetaData(res, parser,
@@ -4565,6 +4589,8 @@
                     ApplicationInfo.PRIVATE_FLAG_PARTIALLY_DIRECT_BOOT_AWARE;
         }
 
+        final boolean hasVisibleToEphemeral =
+                sa.hasValue(R.styleable.AndroidManifestService_visibleToEphemeral);
         final boolean isEphemeral = ((flags & PARSE_IS_EPHEMERAL) != 0);
         final boolean visibleToEphemeral = isEphemeral
                 || sa.getBoolean(R.styleable.AndroidManifestService_visibleToEphemeral, false);
@@ -4600,8 +4626,11 @@
                     return null;
                 }
                 intent.setEphemeral(isEphemeral);
-                intent.setVisibleToEphemeral(visibleToEphemeral);
-
+                intent.setVisibleToEphemeral(visibleToEphemeral || isWebBrowsableIntent(intent));
+                // adjust activity flags when we implicitly expose it via a browsable filter
+                if (!hasVisibleToEphemeral && intent.isVisibleToEphemeral()) {
+                    s.info.flags |= ServiceInfo.FLAG_VISIBLE_TO_EPHEMERAL;
+                }
                 s.intents.add(intent);
             } else if (parser.getName().equals("meta-data")) {
                 if ((s.metaData=parseMetaData(res, parser, s.metaData,
@@ -4629,6 +4658,12 @@
         return s;
     }
 
+    private boolean isWebBrowsableIntent(IntentInfo intent) {
+        return intent.hasAction(Intent.ACTION_VIEW)
+                && intent.hasCategory(Intent.CATEGORY_BROWSABLE)
+                && (intent.hasDataScheme("http") || intent.hasDataScheme("https"));
+    }
+
     private boolean parseAllMetaData(Resources res, XmlResourceParser parser, String tag,
             Component<?> outInfo, String[] outError) throws XmlPullParserException, IOException {
         int outerDepth = parser.getDepth();
diff --git a/core/java/android/net/NetworkScoreManager.java b/core/java/android/net/NetworkScoreManager.java
index 865b8dd..4e606ef 100644
--- a/core/java/android/net/NetworkScoreManager.java
+++ b/core/java/android/net/NetworkScoreManager.java
@@ -183,7 +183,7 @@
         if (app == null) {
             return null;
         }
-        return app.mPackageName;
+        return app.packageName;
     }
 
     /**
@@ -272,19 +272,11 @@
      * @hide
      */
     public boolean requestScores(NetworkKey[] networks) throws SecurityException {
-        String activeScorer = getActiveScorerPackage();
-        if (activeScorer == null) {
-            return false;
+        try {
+            return mService.requestScores(networks);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
         }
-        Intent intent = new Intent(ACTION_SCORE_NETWORKS);
-        intent.setPackage(activeScorer);
-        intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
-        intent.putExtra(EXTRA_NETWORKS_TO_SCORE, networks);
-        // A scorer should never become active if its package doesn't hold SCORE_NETWORKS, but
-        // ensure the package still holds it to be extra safe.
-        // TODO: http://b/23422763
-        mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM, Manifest.permission.SCORE_NETWORKS);
-        return true;
     }
 
     /**
@@ -344,6 +336,8 @@
     /**
      * Request a recommendation for which network to connect to.
      *
+     * <p>It is not safe to call this method from the main thread.
+     *
      * @param request a {@link RecommendationRequest} instance containing additional
      *                request details
      * @return a {@link RecommendationResult} instance containing the recommended network
diff --git a/core/java/android/net/NetworkScorerAppManager.java b/core/java/android/net/NetworkScorerAppManager.java
index ebb31c9..4282ca7 100644
--- a/core/java/android/net/NetworkScorerAppManager.java
+++ b/core/java/android/net/NetworkScorerAppManager.java
@@ -19,160 +19,176 @@
 import android.Manifest;
 import android.Manifest.permission;
 import android.annotation.Nullable;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.Log;
-
+import com.android.internal.R;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
 /**
- * Internal class for managing the primary network scorer application.
- *
- * TODO: Rename this to something more generic.
+ * Internal class for discovering and managing the network scorer/recommendation application.
  *
  * @hide
  */
 public class NetworkScorerAppManager {
     private static final String TAG = "NetworkScorerAppManager";
-
-    private static final Intent SCORE_INTENT =
-            new Intent(NetworkScoreManager.ACTION_SCORE_NETWORKS);
-
+    private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
+    private static final boolean VERBOSE = Log.isLoggable(TAG, Log.VERBOSE);
     private final Context mContext;
 
     public NetworkScorerAppManager(Context context) {
       mContext = context;
     }
 
+    /**
+     * Holds metadata about a discovered network scorer/recommendation application.
+     */
     public static class NetworkScorerAppData {
         /** Package name of this scorer app. */
-        public final String mPackageName;
+        public final String packageName;
 
         /** UID of the scorer app. */
-        public final int mPackageUid;
-
-        /** Name of this scorer app for display. */
-        public final CharSequence mScorerName;
+        public final int packageUid;
 
         /**
-         * Optional class name of a configuration activity. Null if none is set.
-         *
-         * @see NetworkScoreManager#ACTION_CUSTOM_ENABLE
+         * Name of the recommendation service we can bind to.
          */
-        public final String mConfigurationActivityClassName;
+        public final String recommendationServiceClassName;
 
-        /**
-         * Optional class name of the scoring service we can bind to. Null if none is set.
-         */
-        public final String mScoringServiceClassName;
-
-        public NetworkScorerAppData(String packageName, int packageUid, CharSequence scorerName,
-                @Nullable String configurationActivityClassName,
-                @Nullable String scoringServiceClassName) {
-            mScorerName = scorerName;
-            mPackageName = packageName;
-            mPackageUid = packageUid;
-            mConfigurationActivityClassName = configurationActivityClassName;
-            mScoringServiceClassName = scoringServiceClassName;
+        public NetworkScorerAppData(String packageName, int packageUid,
+                String recommendationServiceClassName) {
+            this.packageName = packageName;
+            this.packageUid = packageUid;
+            this.recommendationServiceClassName = recommendationServiceClassName;
         }
 
         @Override
         public String toString() {
             final StringBuilder sb = new StringBuilder("NetworkScorerAppData{");
-            sb.append("mPackageName='").append(mPackageName).append('\'');
-            sb.append(", mPackageUid=").append(mPackageUid);
-            sb.append(", mScorerName=").append(mScorerName);
-            sb.append(", mConfigurationActivityClassName='").append(mConfigurationActivityClassName)
-                    .append('\'');
-            sb.append(", mScoringServiceClassName='").append(mScoringServiceClassName).append('\'');
+            sb.append("mPackageName='").append(packageName).append('\'');
+            sb.append(", packageUid=").append(packageUid);
+            sb.append(", recommendationServiceClassName='")
+                    .append(recommendationServiceClassName).append('\'');
             sb.append('}');
             return sb.toString();
         }
     }
 
     /**
-     * Returns the list of available scorer apps.
+     * @return A {@link NetworkScorerAppData} instance containing information about the
+     *         best configured network recommendation provider installed or {@code null}
+     *         if none of the configured packages can recommend networks.
      *
-     * <p>A network scorer is any application which:
+     * <p>A network recommendation provider is any application which:
      * <ul>
+     * <li>Is listed in the <code>config_networkRecommendationPackageNames</code> config.
      * <li>Declares the {@link android.Manifest.permission#SCORE_NETWORKS} permission.
-     * <li>Includes a receiver for {@link NetworkScoreManager#ACTION_SCORE_NETWORKS} guarded by the
-     *     {@link android.Manifest.permission#BROADCAST_NETWORK_PRIVILEGED} permission.
+     * <li>Includes a Service for {@link NetworkScoreManager#ACTION_RECOMMEND_NETWORKS}.
      * </ul>
-     *
-     * @return the list of scorers, or the empty list if there are no valid scorers.
      */
-    public Collection<NetworkScorerAppData> getAllValidScorers() {
-        // Network scorer apps can only run as the primary user so exit early if we're not the
-        // primary user.
+    public NetworkScorerAppData getNetworkRecommendationProviderData() {
+        // Network recommendation apps can only run as the primary user right now.
+        // http://b/23422763
         if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) {
+            return null;
+        }
+
+        final List<String> potentialPkgs = getPotentialRecommendationProviderPackages();
+        if (potentialPkgs.isEmpty()) {
+            if (DEBUG) {
+                Log.d(TAG, "No Network Recommendation Providers specified.");
+            }
+            return null;
+        }
+
+        final PackageManager pm = mContext.getPackageManager();
+        for (int i = 0; i < potentialPkgs.size(); i++) {
+            final String potentialPkg = potentialPkgs.get(i);
+
+            // Look for the recommendation service class and required receiver.
+            final ResolveInfo resolveServiceInfo = findRecommendationService(potentialPkg);
+            if (resolveServiceInfo != null) {
+                return new NetworkScorerAppData(potentialPkg,
+                    resolveServiceInfo.serviceInfo.applicationInfo.uid,
+                    resolveServiceInfo.serviceInfo.name);
+            } else {
+                if (DEBUG) {
+                    Log.d(TAG, potentialPkg + " does not have the required components, skipping.");
+                }
+            }
+        }
+
+        // None of the configured packages are valid.
+        return null;
+    }
+
+    /**
+     * @return A priority order list of package names that have been granted the
+     *         permission needed for them to act as a network recommendation provider.
+     *         The packages in the returned list may not contain the other required
+     *         network recommendation provider components so additional checks are required
+     *         before making a package the network recommendation provider.
+     */
+    public List<String> getPotentialRecommendationProviderPackages() {
+        final String[] packageArray = mContext.getResources().getStringArray(
+                R.array.config_networkRecommendationPackageNames);
+        if (packageArray == null || packageArray.length == 0) {
+            if (DEBUG) {
+                Log.d(TAG, "No Network Recommendation Providers specified.");
+            }
             return Collections.emptyList();
         }
 
-        List<NetworkScorerAppData> scorers = new ArrayList<>();
-        PackageManager pm = mContext.getPackageManager();
-        // Only apps installed under the primary user of the device can be scorers.
-        // TODO: http://b/23422763
-        List<ResolveInfo> receivers =
-                pm.queryBroadcastReceiversAsUser(SCORE_INTENT, 0 /* flags */, UserHandle.USER_SYSTEM);
-        for (ResolveInfo receiver : receivers) {
-            // This field is a misnomer, see android.content.pm.ResolveInfo#activityInfo
-            final ActivityInfo receiverInfo = receiver.activityInfo;
-            if (receiverInfo == null) {
-                // Should never happen with queryBroadcastReceivers, but invalid nonetheless.
-                continue;
-            }
-            if (!permission.BROADCAST_NETWORK_PRIVILEGED.equals(receiverInfo.permission)) {
-                // Receiver doesn't require the BROADCAST_NETWORK_PRIVILEGED permission, which
-                // means anyone could trigger network scoring and flood the framework with score
-                // requests.
-                continue;
-            }
-            if (pm.checkPermission(permission.SCORE_NETWORKS, receiverInfo.packageName) !=
-                    PackageManager.PERMISSION_GRANTED) {
-                // Application doesn't hold the SCORE_NETWORKS permission, so the user never
-                // approved it as a network scorer.
-                continue;
-            }
-
-            // Optionally, this package may specify a configuration activity.
-            String configurationActivityClassName = null;
-            Intent intent = new Intent(NetworkScoreManager.ACTION_CUSTOM_ENABLE);
-            intent.setPackage(receiverInfo.packageName);
-            List<ResolveInfo> configActivities = pm.queryIntentActivities(intent, 0 /* flags */);
-            if (configActivities != null && !configActivities.isEmpty()) {
-                ActivityInfo activityInfo = configActivities.get(0).activityInfo;
-                if (activityInfo != null) {
-                    configurationActivityClassName = activityInfo.name;
-                }
-            }
-
-            // Find the scoring service class we can bind to, if any.
-            String scoringServiceClassName = null;
-            Intent serviceIntent = new Intent(NetworkScoreManager.ACTION_SCORE_NETWORKS);
-            serviceIntent.setPackage(receiverInfo.packageName);
-            ResolveInfo resolveServiceInfo = pm.resolveService(serviceIntent, 0 /* flags */);
-            if (resolveServiceInfo != null && resolveServiceInfo.serviceInfo != null) {
-                scoringServiceClassName = resolveServiceInfo.serviceInfo.name;
-            }
-
-            // NOTE: loadLabel will attempt to load the receiver's label and fall back to the
-            // app label if none is present.
-            scorers.add(new NetworkScorerAppData(receiverInfo.packageName,
-                    receiverInfo.applicationInfo.uid, receiverInfo.loadLabel(pm),
-                    configurationActivityClassName, scoringServiceClassName));
+        if (VERBOSE) {
+            Log.d(TAG, "Configured packages: " + TextUtils.join(", ", packageArray));
         }
 
-        return scorers;
+        List<String> packages = new ArrayList<>();
+        final PackageManager pm = mContext.getPackageManager();
+        for (String potentialPkg : packageArray) {
+            if (pm.checkPermission(permission.SCORE_NETWORKS, potentialPkg)
+                    == PackageManager.PERMISSION_GRANTED) {
+                packages.add(potentialPkg);
+            } else {
+                if (DEBUG) {
+                    Log.d(TAG, potentialPkg + " has not been granted " + permission.SCORE_NETWORKS
+                            + ", skipping.");
+                }
+            }
+        }
+
+        return packages;
+    }
+
+    private ResolveInfo findRecommendationService(String packageName) {
+        final PackageManager pm = mContext.getPackageManager();
+        final int resolveFlags = 0;
+
+        final Intent serviceIntent = new Intent(NetworkScoreManager.ACTION_RECOMMEND_NETWORKS);
+        serviceIntent.setPackage(packageName);
+        final ResolveInfo resolveServiceInfo =
+                pm.resolveService(serviceIntent, resolveFlags);
+
+        if (VERBOSE) {
+            Log.d(TAG, "Resolved " + serviceIntent + " to " + resolveServiceInfo);
+        }
+
+        if (resolveServiceInfo != null && resolveServiceInfo.serviceInfo != null) {
+            return resolveServiceInfo;
+        }
+
+        if (VERBOSE) {
+            Log.v(TAG, packageName + " does not have a service for " + serviceIntent);
+        }
+        return null;
     }
 
     /**
@@ -182,10 +198,15 @@
      *     selected) or if the previously-set scorer is no longer a valid scorer app (e.g. because
      *     it was disabled or uninstalled).
      */
+    @Nullable
     public NetworkScorerAppData getActiveScorer() {
-        String scorerPackage = Settings.Global.getString(mContext.getContentResolver(),
-                Settings.Global.NETWORK_SCORER_APP);
-        return getScorer(scorerPackage);
+        if (isNetworkRecommendationsDisabled()) {
+            // If recommendations are disabled then there can't be an active scorer.
+            return null;
+        }
+
+        // Otherwise return the recommendation provider (which may be null).
+        return getNetworkRecommendationProviderData();
     }
 
     /**
@@ -195,33 +216,13 @@
      *
      * @param packageName the packageName of the new scorer to use. If null, scoring will be
      *     disabled. Otherwise, the scorer will only be set if it is a valid scorer application.
-     * @return true if the scorer was changed, or false if the package is not a valid scorer.
+     * @return true if the scorer was changed, or false if the package is not a valid scorer or
+     *         a valid network recommendation provider exists.
+     * @deprecated Scorers are now selected from a configured list.
      */
+    @Deprecated
     public boolean setActiveScorer(String packageName) {
-        String oldPackageName = Settings.Global.getString(mContext.getContentResolver(),
-                Settings.Global.NETWORK_SCORER_APP);
-        if (TextUtils.equals(oldPackageName, packageName)) {
-            // No change.
-            return true;
-        }
-
-        Log.i(TAG, "Changing network scorer from " + oldPackageName + " to " + packageName);
-
-        if (packageName == null) {
-            Settings.Global.putString(mContext.getContentResolver(),
-                    Settings.Global.NETWORK_SCORER_APP, null);
-            return true;
-        } else {
-            // We only make the change if the new package is valid.
-            if (getScorer(packageName) != null) {
-                Settings.Global.putString(mContext.getContentResolver(),
-                        Settings.Global.NETWORK_SCORER_APP, packageName);
-                return true;
-            } else {
-                Log.w(TAG, "Requested network scorer is not valid: " + packageName);
-                return false;
-            }
-        }
+        return false;
     }
 
     /** Determine whether the application with the given UID is the enabled scorer. */
@@ -230,7 +231,7 @@
         if (defaultApp == null) {
             return false;
         }
-        if (callingUid != defaultApp.mPackageUid) {
+        if (callingUid != defaultApp.packageUid) {
             return false;
         }
         // To be extra safe, ensure the caller holds the SCORE_NETWORKS permission. It always
@@ -239,17 +240,9 @@
                 PackageManager.PERMISSION_GRANTED;
     }
 
-    /** Returns the {@link NetworkScorerAppData} for the given app, or null if it's not a scorer. */
-    public NetworkScorerAppData getScorer(String packageName) {
-        if (TextUtils.isEmpty(packageName)) {
-            return null;
-        }
-        Collection<NetworkScorerAppData> applications = getAllValidScorers();
-        for (NetworkScorerAppData app : applications) {
-            if (packageName.equals(app.mPackageName)) {
-                return app;
-            }
-        }
-        return null;
+    private boolean isNetworkRecommendationsDisabled() {
+        final ContentResolver cr = mContext.getContentResolver();
+        // A value of 1 indicates enabled.
+        return Settings.Global.getInt(cr, Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED, 0) != 1;
     }
 }
diff --git a/core/java/android/net/RecommendationRequest.java b/core/java/android/net/RecommendationRequest.java
index 05ca1aa..a96f90d 100644
--- a/core/java/android/net/RecommendationRequest.java
+++ b/core/java/android/net/RecommendationRequest.java
@@ -105,7 +105,16 @@
     }
 
     protected RecommendationRequest(Parcel in) {
-        mScanResults = (ScanResult[]) in.readParcelableArray(ScanResult.class.getClassLoader());
+        final int resultCount = in.readInt();
+        if (resultCount > 0) {
+            mScanResults = new ScanResult[resultCount];
+            for (int i = 0; i < resultCount; i++) {
+                mScanResults[i] = in.readParcelable(ScanResult.class.getClassLoader());
+            }
+        } else {
+            mScanResults = null;
+        }
+
         mCurrentSelectedConfig = in.readParcelable(WifiConfiguration.class.getClassLoader());
         mRequiredCapabilities = in.readParcelable(NetworkCapabilities.class.getClassLoader());
     }
@@ -117,7 +126,14 @@
 
     @Override
     public void writeToParcel(Parcel dest, int flags) {
-        dest.writeParcelableArray(mScanResults, flags);
+        if (mScanResults != null) {
+            dest.writeInt(mScanResults.length);
+            for (int i = 0; i < mScanResults.length; i++) {
+                dest.writeParcelable(mScanResults[i], flags);
+            }
+        } else {
+            dest.writeInt(0);
+        }
         dest.writeParcelable(mCurrentSelectedConfig, flags);
         dest.writeParcelable(mRequiredCapabilities, flags);
     }
diff --git a/core/jni/android/graphics/Bitmap.cpp b/core/jni/android/graphics/Bitmap.cpp
index b656bb0..80711aa 100755
--- a/core/jni/android/graphics/Bitmap.cpp
+++ b/core/jni/android/graphics/Bitmap.cpp
@@ -1190,8 +1190,7 @@
     }
 }
 
-static jboolean Bitmap_sameAs(JNIEnv* env, jobject, jlong bm0Handle,
-                              jlong bm1Handle) {
+static jboolean Bitmap_sameAs(JNIEnv* env, jobject, jlong bm0Handle, jlong bm1Handle) {
     SkBitmap bm0;
     SkBitmap bm1;
 
@@ -1207,11 +1206,11 @@
 
     bitmap0->bitmap().getSkBitmap(&bm0);
     bitmap1->bitmap().getSkBitmap(&bm1);
-    if (bm0.width() != bm1.width() ||
-        bm0.height() != bm1.height() ||
-        bm0.colorType() != bm1.colorType() ||
-        bm0.alphaType() != bm1.alphaType() ||
-        bm0.colorSpace() != bm1.colorSpace()) {
+    if (bm0.width() != bm1.width()
+            || bm0.height() != bm1.height()
+            || bm0.colorType() != bm1.colorType()
+            || bm0.alphaType() != bm1.alphaType()
+            || !SkColorSpace::Equals(bm0.colorSpace(), bm1.colorSpace())) {
         return JNI_FALSE;
     }
 
diff --git a/core/jni/android_view_GraphicBuffer.cpp b/core/jni/android_view_GraphicBuffer.cpp
index bb69e27..f18837f 100644
--- a/core/jni/android_view_GraphicBuffer.cpp
+++ b/core/jni/android_view_GraphicBuffer.cpp
@@ -144,8 +144,6 @@
             return kN32_SkColorType;
         case PIXEL_FORMAT_RGBA_FP16:
             return kRGBA_F16_SkColorType;
-        case PIXEL_FORMAT_RGBX_FP16:
-            return kRGBA_F16_SkColorType;
         case PIXEL_FORMAT_RGB_565:
             return kRGB_565_SkColorType;
         default:
diff --git a/core/jni/android_view_Surface.cpp b/core/jni/android_view_Surface.cpp
index a5b7671..96e6f81 100644
--- a/core/jni/android_view_Surface.cpp
+++ b/core/jni/android_view_Surface.cpp
@@ -169,7 +169,6 @@
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
         case HAL_PIXEL_FORMAT_RGBA_FP16:
-        case HAL_PIXEL_FORMAT_RGBX_FP16:
         case HAL_PIXEL_FORMAT_RGB_888:
         case HAL_PIXEL_FORMAT_RGB_565:
         case HAL_PIXEL_FORMAT_Y8:
@@ -285,7 +284,6 @@
     switch (format) {
     case PIXEL_FORMAT_RGBX_8888:    return kN32_SkColorType;
     case PIXEL_FORMAT_RGBA_8888:    return kN32_SkColorType;
-    case PIXEL_FORMAT_RGBX_FP16:    return kRGBA_F16_SkColorType;
     case PIXEL_FORMAT_RGBA_FP16:    return kRGBA_F16_SkColorType;
     case PIXEL_FORMAT_RGB_565:      return kRGB_565_SkColorType;
     default:                        return kUnknown_SkColorType;
diff --git a/core/jni/android_view_SurfaceControl.cpp b/core/jni/android_view_SurfaceControl.cpp
index 62c3d04..ed071cd 100644
--- a/core/jni/android_view_SurfaceControl.cpp
+++ b/core/jni/android_view_SurfaceControl.cpp
@@ -164,11 +164,6 @@
             alphaType = kPremul_SkAlphaType;
             break;
         }
-        case PIXEL_FORMAT_RGBX_FP16: {
-            colorType = kRGBA_F16_SkColorType;
-            alphaType = kOpaque_SkAlphaType;
-            break;
-        }
         case PIXEL_FORMAT_RGBA_FP16: {
             colorType = kRGBA_F16_SkColorType;
             alphaType = kPremul_SkAlphaType;
diff --git a/core/jni/android_view_TextureView.cpp b/core/jni/android_view_TextureView.cpp
index d3c0202..613e040 100644
--- a/core/jni/android_view_TextureView.cpp
+++ b/core/jni/android_view_TextureView.cpp
@@ -87,10 +87,6 @@
             colorType = kRGBA_F16_SkColorType;
             alphaType = kPremul_SkAlphaType;
             break;
-        case WINDOW_FORMAT_RGBX_FP16:
-            colorType = kRGBA_F16_SkColorType;
-            alphaType = kOpaque_SkAlphaType;
-            break;
         case WINDOW_FORMAT_RGB_565:
             colorType = kRGB_565_SkColorType;
             alphaType = kOpaque_SkAlphaType;
diff --git a/core/jni/include/android_runtime/android_view_Surface.h b/core/jni/include/android_runtime/android_view_Surface.h
index b1e552a..1bc8521 100644
--- a/core/jni/include/android_runtime/android_view_Surface.h
+++ b/core/jni/include/android_runtime/android_view_Surface.h
@@ -42,6 +42,7 @@
     NV16              = 0x10,
     NV21              = 0x11,
     YUY2              = 0x14,
+    RGBA_FP16         = 0x16,
     RAW_SENSOR        = 0x20,
     PRIVATE           = 0x22,
     YUV_420_888       = 0x23,
diff --git a/core/tests/coretests/src/android/net/NetworkScorerAppManagerTest.java b/core/tests/coretests/src/android/net/NetworkScorerAppManagerTest.java
index 02c2517..5bfff26 100644
--- a/core/tests/coretests/src/android/net/NetworkScorerAppManagerTest.java
+++ b/core/tests/coretests/src/android/net/NetworkScorerAppManagerTest.java
@@ -16,32 +16,33 @@
 
 package android.net;
 
+import static org.mockito.Mockito.when;
+
 import android.Manifest.permission;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
+import android.content.res.Resources;
 import android.net.NetworkScorerAppManager.NetworkScorerAppData;
-import android.os.UserHandle;
+import android.provider.Settings;
 import android.test.InstrumentationTestCase;
-
+import com.android.internal.R;
+import java.util.List;
 import org.mockito.ArgumentMatcher;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-
 public class NetworkScorerAppManagerTest extends InstrumentationTestCase {
     @Mock private Context mMockContext;
     @Mock private PackageManager mMockPm;
-
+    @Mock private Resources mResources;
+    @Mock private ContentResolver mContentResolver;
+    private Context mTargetContext;
     private NetworkScorerAppManager mNetworkScorerAppManager;
 
     @Override
@@ -49,154 +50,161 @@
         super.setUp();
 
         // Configuration needed to make mockito/dexcache work.
-        System.setProperty("dexmaker.dexcache",
-                getInstrumentation().getTargetContext().getCacheDir().getPath());
+        mTargetContext = getInstrumentation().getTargetContext();
+        System.setProperty("dexmaker.dexcache", mTargetContext.getCacheDir().getPath());
         ClassLoader newClassLoader = getInstrumentation().getClass().getClassLoader();
         Thread.currentThread().setContextClassLoader(newClassLoader);
 
         MockitoAnnotations.initMocks(this);
-        Mockito.when(mMockContext.getPackageManager()).thenReturn(mMockPm);
+        when(mMockContext.getPackageManager()).thenReturn(mMockPm);
+        when(mMockContext.getResources()).thenReturn(mResources);
+        when(mMockContext.getContentResolver()).thenReturn(mTargetContext.getContentResolver());
         mNetworkScorerAppManager = new NetworkScorerAppManager(mMockContext);
     }
 
-    public void testGetAllValidScorers() throws Exception {
-        // Package 1 - Valid scorer.
-        ResolveInfoHolder package1 = buildResolveInfo("package1", 1, true, true, false, false);
-
-        // Package 2 - Receiver does not have BROADCAST_NETWORK_PRIVILEGED permission.
-        ResolveInfoHolder package2 = buildResolveInfo("package2", 2, false, true, false, false);
-
-        // Package 3 - App does not have SCORE_NETWORKS permission.
-        ResolveInfoHolder package3 = buildResolveInfo("package3", 3, true, false, false, false);
-
-        // Package 4 - Valid scorer w/ optional config activity.
-        ResolveInfoHolder package4 = buildResolveInfo("package4", 4, true, true, true, false);
-
-        // Package 5 - Valid scorer w/ optional service to bind to.
-        ResolveInfoHolder package5 = buildResolveInfo("package5", 5, true, true, false, true);
-
-        List<ResolveInfoHolder> scorers = new ArrayList<>();
-        scorers.add(package1);
-        scorers.add(package2);
-        scorers.add(package3);
-        scorers.add(package4);
-        scorers.add(package5);
-        setScorers(scorers);
-
-        Iterator<NetworkScorerAppData> result =
-                mNetworkScorerAppManager.getAllValidScorers().iterator();
-
-        assertTrue(result.hasNext());
-        NetworkScorerAppData next = result.next();
-        assertEquals("package1", next.mPackageName);
-        assertEquals(1, next.mPackageUid);
-        assertNull(next.mConfigurationActivityClassName);
-
-        assertTrue(result.hasNext());
-        next = result.next();
-        assertEquals("package4", next.mPackageName);
-        assertEquals(4, next.mPackageUid);
-        assertEquals(".ConfigActivity", next.mConfigurationActivityClassName);
-
-        assertTrue(result.hasNext());
-        next = result.next();
-        assertEquals("package5", next.mPackageName);
-        assertEquals(5, next.mPackageUid);
-        assertEquals(".ScoringService", next.mScoringServiceClassName);
-
-        assertFalse(result.hasNext());
+    public void testGetPotentialRecommendationProviderPackages_emptyConfig() throws Exception {
+        setNetworkRecommendationPackageNames(/*no configured packages*/);
+        assertTrue(mNetworkScorerAppManager.getPotentialRecommendationProviderPackages().isEmpty());
     }
 
-    private void setScorers(List<ResolveInfoHolder> scorers) {
-        List<ResolveInfo> receivers = new ArrayList<>();
-        for (final ResolveInfoHolder scorer : scorers) {
-            receivers.add(scorer.scorerResolveInfo);
-            if (scorer.configActivityResolveInfo != null) {
-                // This scorer has a config activity.
-                Mockito.when(mMockPm.queryIntentActivities(
-                        Mockito.argThat(new ArgumentMatcher<Intent>() {
-                            @Override
-                            public boolean matches(Object object) {
-                                Intent intent = (Intent) object;
-                                return NetworkScoreManager.ACTION_CUSTOM_ENABLE.equals(
-                                        intent.getAction())
-                                        && scorer.scorerResolveInfo.activityInfo.packageName.equals(
-                                                intent.getPackage());
-                            }
-                        }), Mockito.eq(0))).thenReturn(
-                                Collections.singletonList(scorer.configActivityResolveInfo));
-            }
+    public void testGetPotentialRecommendationProviderPackages_permissionNotGranted()
+            throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksDenied("package1");
 
-            if (scorer.serviceResolveInfo != null) {
-                // This scorer has a service to bind to
-                Mockito.when(mMockPm.resolveService(
-                        Mockito.argThat(new ArgumentMatcher<Intent>() {
-                            @Override
-                            public boolean matches(Object object) {
-                                Intent intent = (Intent) object;
-                                return NetworkScoreManager.ACTION_SCORE_NETWORKS.equals(
-                                        intent.getAction())
-                                        && scorer.scorerResolveInfo.activityInfo.packageName.equals(
-                                        intent.getPackage());
-                            }
-                        }), Mockito.eq(0))).thenReturn(scorer.serviceResolveInfo);
-            }
+        assertTrue(mNetworkScorerAppManager.getPotentialRecommendationProviderPackages().isEmpty());
+    }
+
+    public void testGetPotentialRecommendationProviderPackages_permissionGranted()
+            throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksGranted("package1");
+
+        List<String> potentialProviderPackages =
+                mNetworkScorerAppManager.getPotentialRecommendationProviderPackages();
+
+        assertFalse(potentialProviderPackages.isEmpty());
+        assertEquals("package1", potentialProviderPackages.get(0));
+    }
+
+    public void testGetPotentialRecommendationProviderPackages_multipleConfigured()
+            throws Exception {
+        setNetworkRecommendationPackageNames("package1", "package2");
+        mockScoreNetworksDenied("package1");
+        mockScoreNetworksGranted("package2");
+
+        List<String> potentialProviderPackages =
+                mNetworkScorerAppManager.getPotentialRecommendationProviderPackages();
+
+        assertEquals(1, potentialProviderPackages.size());
+        assertEquals("package2", potentialProviderPackages.get(0));
+    }
+
+    public void testGetNetworkRecommendationProviderData_noPotentialPackages() throws Exception {
+        setNetworkRecommendationPackageNames(/*no configured packages*/);
+        assertNull(mNetworkScorerAppManager.getNetworkRecommendationProviderData());
+    }
+
+    public void testGetNetworkRecommendationProviderData_serviceMissing() throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksGranted("package1");
+
+        assertNull(mNetworkScorerAppManager.getNetworkRecommendationProviderData());
+    }
+
+    public void testGetNetworkRecommendationProviderData_scoreNetworksNotGranted()
+            throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksDenied("package1");
+        mockRecommendationServiceAvailable("package1", 924 /* packageUid */);
+
+        assertNull(mNetworkScorerAppManager.getNetworkRecommendationProviderData());
+    }
+
+    public void testGetNetworkRecommendationProviderData_available() throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksGranted("package1");
+        mockRecommendationServiceAvailable("package1", 924 /* packageUid */);
+
+        NetworkScorerAppData appData =
+                mNetworkScorerAppManager.getNetworkRecommendationProviderData();
+        assertNotNull(appData);
+        assertEquals("package1", appData.packageName);
+        assertEquals(924, appData.packageUid);
+        assertEquals(".RecommendationService", appData.recommendationServiceClassName);
+    }
+
+    public void testGetActiveScorer_providerAvailable() throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksGranted("package1");
+        mockRecommendationServiceAvailable("package1", 924 /* packageUid */);
+
+        ContentResolver cr = mTargetContext.getContentResolver();
+        Settings.Global.putInt(cr, Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED, 1);
+
+        final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer();
+        assertNotNull(activeScorer);
+        assertEquals("package1", activeScorer.packageName);
+        assertEquals(924, activeScorer.packageUid);
+        assertEquals(".RecommendationService", activeScorer.recommendationServiceClassName);
+    }
+
+    public void testGetActiveScorer_providerNotAvailable()
+            throws Exception {
+        ContentResolver cr = mTargetContext.getContentResolver();
+        Settings.Global.putInt(cr, Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED, 1);
+
+        final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer();
+        assertNull(activeScorer);
+    }
+
+    public void testGetActiveScorer_recommendationsDisabled() throws Exception {
+        setNetworkRecommendationPackageNames("package1");
+        mockScoreNetworksGranted("package1");
+        mockRecommendationServiceAvailable("package1", 924 /* packageUid */);
+        ContentResolver cr = mTargetContext.getContentResolver();
+        Settings.Global.putInt(cr, Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED, 0);
+
+        final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer();
+        assertNull(activeScorer);
+    }
+
+    private void setNetworkRecommendationPackageNames(String... names) {
+        if (names == null) {
+            names = new String[0];
         }
+        when(mResources.getStringArray(R.array.config_networkRecommendationPackageNames))
+                .thenReturn(names);
+    }
 
-        Mockito.when(mMockPm.queryBroadcastReceiversAsUser(
+    private void mockScoreNetworksGranted(String packageName) {
+        when(mMockPm.checkPermission(permission.SCORE_NETWORKS, packageName))
+                .thenReturn(PackageManager.PERMISSION_GRANTED);
+    }
+
+    private void mockScoreNetworksDenied(String packageName) {
+        when(mMockPm.checkPermission(permission.SCORE_NETWORKS, packageName))
+                .thenReturn(PackageManager.PERMISSION_DENIED);
+    }
+
+    private void mockRecommendationServiceAvailable(final String packageName, int packageUid) {
+        final ResolveInfo serviceInfo = new ResolveInfo();
+        serviceInfo.serviceInfo = new ServiceInfo();
+        serviceInfo.serviceInfo.name = ".RecommendationService";
+        serviceInfo.serviceInfo.packageName = packageName;
+        serviceInfo.serviceInfo.applicationInfo = new ApplicationInfo();
+        serviceInfo.serviceInfo.applicationInfo.uid = packageUid;
+
+        final int flags = 0;
+        when(mMockPm.resolveService(
                 Mockito.argThat(new ArgumentMatcher<Intent>() {
                     @Override
                     public boolean matches(Object object) {
                         Intent intent = (Intent) object;
-                        return NetworkScoreManager.ACTION_SCORE_NETWORKS.equals(intent.getAction());
+                        return NetworkScoreManager.ACTION_RECOMMEND_NETWORKS
+                                .equals(intent.getAction())
+                                && packageName.equals(intent.getPackage());
                     }
-                }), Mockito.eq(0), Mockito.eq(UserHandle.USER_SYSTEM)))
-                .thenReturn(receivers);
-    }
-
-    private ResolveInfoHolder buildResolveInfo(String packageName, int packageUid,
-            boolean hasReceiverPermission, boolean hasScorePermission, boolean hasConfigActivity,
-            boolean hasServiceInfo) throws Exception {
-        Mockito.when(mMockPm.checkPermission(permission.SCORE_NETWORKS, packageName))
-                .thenReturn(hasScorePermission ?
-                        PackageManager.PERMISSION_GRANTED : PackageManager.PERMISSION_DENIED);
-
-        ResolveInfo resolveInfo = new ResolveInfo();
-        resolveInfo.activityInfo = new ActivityInfo();
-        resolveInfo.activityInfo.packageName = packageName;
-        resolveInfo.activityInfo.applicationInfo = new ApplicationInfo();
-        resolveInfo.activityInfo.applicationInfo.uid = packageUid;
-        if (hasReceiverPermission) {
-            resolveInfo.activityInfo.permission = permission.BROADCAST_NETWORK_PRIVILEGED;
-        }
-
-        ResolveInfo configActivityInfo = null;
-        if (hasConfigActivity) {
-            configActivityInfo = new ResolveInfo();
-            configActivityInfo.activityInfo = new ActivityInfo();
-            configActivityInfo.activityInfo.name = ".ConfigActivity";
-        }
-
-        ResolveInfo serviceInfo = null;
-        if (hasServiceInfo) {
-            serviceInfo = new ResolveInfo();
-            serviceInfo.serviceInfo = new ServiceInfo();
-            serviceInfo.serviceInfo.name = ".ScoringService";
-        }
-
-        return new ResolveInfoHolder(resolveInfo, configActivityInfo, serviceInfo);
-    }
-
-    private static class ResolveInfoHolder {
-        final ResolveInfo scorerResolveInfo;
-        final ResolveInfo configActivityResolveInfo;
-        final ResolveInfo serviceResolveInfo;
-
-        public ResolveInfoHolder(ResolveInfo scorerResolveInfo,
-                ResolveInfo configActivityResolveInfo, ResolveInfo serviceResolveInfo) {
-            this.scorerResolveInfo = scorerResolveInfo;
-            this.configActivityResolveInfo = configActivityResolveInfo;
-            this.serviceResolveInfo = serviceResolveInfo;
-        }
+                }), Mockito.eq(flags))).thenReturn(serviceInfo);
     }
 }
diff --git a/core/tests/coretests/src/android/net/RecommendationRequestTest.java b/core/tests/coretests/src/android/net/RecommendationRequestTest.java
new file mode 100644
index 0000000..31560b0
--- /dev/null
+++ b/core/tests/coretests/src/android/net/RecommendationRequestTest.java
@@ -0,0 +1,84 @@
+package android.net;
+
+import android.net.wifi.ScanResult;
+import android.net.wifi.WifiConfiguration;
+import android.os.Parcel;
+import android.test.AndroidTestCase;
+
+public class RecommendationRequestTest extends AndroidTestCase {
+    private ScanResult[] mScanResults;
+    private WifiConfiguration mConfiguration;
+    private NetworkCapabilities mCapabilities;
+
+    @Override
+    public void setUp() throws Exception {
+        mScanResults = new ScanResult[2];
+        mScanResults[0] = new ScanResult();
+        mScanResults[1] = new ScanResult(
+                "ssid",
+                "bssid",
+                0L /*hessid*/,
+                1 /*anqpDominId*/,
+                "caps",
+                2 /*level*/,
+                3 /*frequency*/,
+                4L /*tsf*/,
+                5 /*distCm*/,
+                6 /*distSdCm*/,
+                7 /*channelWidth*/,
+                8 /*centerFreq0*/,
+                9 /*centerFreq1*/,
+                false /*is80211McRTTResponder*/);
+        mConfiguration = new WifiConfiguration();
+        mConfiguration.SSID = "RecommendationRequestTest";
+        mCapabilities = new NetworkCapabilities()
+                .removeCapability(NetworkCapabilities.NET_CAPABILITY_TRUSTED);
+    }
+
+    public void testParceling() throws Exception {
+        RecommendationRequest request = new RecommendationRequest.Builder()
+                .setCurrentRecommendedWifiConfig(mConfiguration)
+                .setScanResults(mScanResults)
+                .setNetworkCapabilities(mCapabilities)
+                .build();
+
+        RecommendationRequest parceled = passThroughParcel(request);
+        assertEquals(request.getCurrentSelectedConfig().SSID,
+                parceled.getCurrentSelectedConfig().SSID);
+        assertEquals(request.getRequiredCapabilities(), parceled.getRequiredCapabilities());
+        ScanResult[] parceledScanResults = parceled.getScanResults();
+        assertNotNull(parceledScanResults);
+        assertEquals(mScanResults.length, parceledScanResults.length);
+        for (int i = 0; i < mScanResults.length; i++) {
+            assertEquals(mScanResults[i].SSID, parceledScanResults[i].SSID);
+        }
+    }
+
+    public void testParceling_nullScanResults() throws Exception {
+        RecommendationRequest request = new RecommendationRequest.Builder()
+                .setCurrentRecommendedWifiConfig(mConfiguration)
+                .setNetworkCapabilities(mCapabilities)
+                .build();
+
+        RecommendationRequest parceled = passThroughParcel(request);
+        assertEquals(request.getCurrentSelectedConfig().SSID,
+                parceled.getCurrentSelectedConfig().SSID);
+        assertEquals(request.getRequiredCapabilities(), parceled.getRequiredCapabilities());
+        ScanResult[] parceledScanResults = parceled.getScanResults();
+        assertNull(parceledScanResults);
+    }
+
+    private RecommendationRequest passThroughParcel(RecommendationRequest request) {
+        Parcel p = Parcel.obtain();
+        RecommendationRequest output = null;
+        try {
+            request.writeToParcel(p, 0);
+            p.setDataPosition(0);
+            output = RecommendationRequest.CREATOR.createFromParcel(p);
+        } finally {
+            p.recycle();
+        }
+        assertNotNull(output);
+        return output;
+    }
+}
diff --git a/core/tests/coretests/src/android/view/ViewCaptureTest.java b/core/tests/coretests/src/android/view/ViewCaptureTest.java
index 15cfe23..1b4d4a2 100644
--- a/core/tests/coretests/src/android/view/ViewCaptureTest.java
+++ b/core/tests/coretests/src/android/view/ViewCaptureTest.java
@@ -16,6 +16,8 @@
 
 package android.view;
 
+import static org.junit.Assert.assertTrue;
+
 import android.app.Activity;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
@@ -32,8 +34,6 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
-import static org.junit.Assert.assertTrue;
-
 @RunWith(AndroidJUnit4.class)
 public class ViewCaptureTest {
 
@@ -70,6 +70,7 @@
 
     private void testCreateSnapshot(boolean skipChildren, int goldenResId) {
         Bitmap result = mViewToCapture.createSnapshot(Bitmap.Config.ARGB_8888, 0, skipChildren);
+        result.setHasAlpha(false); // resource will have no alpha, since content is opaque
         Bitmap golden = BitmapFactory.decodeResource(mActivity.getResources(), goldenResId);
         assertTrue(golden.sameAs(result));
     }
diff --git a/graphics/java/android/graphics/PixelFormat.java b/graphics/java/android/graphics/PixelFormat.java
index 0fa52f8..c3a9443 100644
--- a/graphics/java/android/graphics/PixelFormat.java
+++ b/graphics/java/android/graphics/PixelFormat.java
@@ -29,7 +29,7 @@
 
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef({RGBA_8888, RGBX_8888, RGBA_F16, RGBX_F16, RGB_888, RGB_565})
+    @IntDef({RGBA_8888, RGBX_8888, RGBA_F16, RGB_888, RGB_565})
     public @interface Format { };
 
     // NOTE: these constants must match the values from graphics/common/x.x/types.hal
@@ -88,7 +88,6 @@
     public static final int YCbCr_422_I = 0x14;
 
     public static final int RGBA_F16    = 0x16;
-    public static final int RGBX_F16    = 0x17;
 
     /**
      * @deprecated use {@link android.graphics.ImageFormat#JPEG
@@ -134,7 +133,6 @@
                 info.bytesPerPixel = 1;
                 break;
             case RGBA_F16:
-            case RGBX_F16:
                 info.bitsPerPixel = 64;
                 info.bytesPerPixel = 8;
                 break;
@@ -178,7 +176,6 @@
             case RGB_888:
             case RGB_565:
             case RGBA_F16:
-            case RGBX_F16:
                 return true;
         }
 
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index d232e00..5c2787b 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -287,22 +287,6 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".recents.grid.RecentsGridActivity"
-                  android:label="@string/accessibility_desc_recent_apps"
-                  android:exported="false"
-                  android:launchMode="singleInstance"
-                  android:excludeFromRecents="true"
-                  android:stateNotNeeded="true"
-                  android:resumeWhilePausing="true"
-                  android:screenOrientation="behind"
-                  android:resizeableActivity="true"
-                  android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout"
-                  android:theme="@style/RecentsTheme.Grid">
-            <intent-filter>
-                <action android:name="com.android.systemui.recents.TOGGLE_RECENTS" />
-            </intent-filter>
-        </activity>
-
         <activity android:name=".recents.tv.RecentsTvActivity"
                   android:label="@string/accessibility_desc_recent_apps"
                   android:exported="false"
diff --git a/packages/SystemUI/res/drawable/header_dot.xml b/packages/SystemUI/res/drawable/header_dot.xml
index 568a9c2..dbc6b37 100644
--- a/packages/SystemUI/res/drawable/header_dot.xml
+++ b/packages/SystemUI/res/drawable/header_dot.xml
@@ -2,26 +2,27 @@
 <!--
 ** Copyright 2015, 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 
+** 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 
+**     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 
+** 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.
 -->
 <shape
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="oval">
+    android:shape="oval"
+    android:tint="?android:attr/colorControlNormal">
 
-    <solid 
+    <solid
         android:color="#FFFFFF"/>
 
-    <size 
+    <size
         android:width="3dp"
         android:height="3dp"/>
 </shape>
diff --git a/packages/SystemUI/res/layout-sw600dp/recents_grid.xml b/packages/SystemUI/res/layout-sw600dp/recents_grid.xml
deleted file mode 100644
index 1a054a5..0000000
--- a/packages/SystemUI/res/layout-sw600dp/recents_grid.xml
+++ /dev/null
@@ -1,23 +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.
--->
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:id="@+id/recents_view"
-    android:gravity="center"
-    android:background="#99000000">
-    <include layout="@layout/recents_stack_action_button" />
-</FrameLayout>
\ No newline at end of file
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index fe5606e..5f9ade5 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -720,18 +720,4 @@
     <!-- The size of a PIP menu action icon. -->
     <dimen name="pip_menu_action_icon_size">32dp</dimen>
 
-    <!-- Values specific to grid-based recents. -->
-    <!-- Margins around recent tasks. -->
-    <dimen name="recents_grid_margin_left">15dp</dimen>
-    <dimen name="recents_grid_margin_top">70dp</dimen>
-    <dimen name="recents_grid_margin_right">15dp</dimen>
-    <dimen name="recents_grid_margin_bottom">90dp</dimen>
-    <!-- Margins around the "Clear all" button. -->
-    <dimen name="recents_grid_clear_all_margin_left">0dp</dimen>
-    <dimen name="recents_grid_clear_all_margin_top">30dp</dimen>
-    <dimen name="recents_grid_clear_all_margin_right">15dp</dimen>
-    <dimen name="recents_grid_clear_all_margin_bottom">0dp</dimen>
-    <!-- Padding in between task views. -->
-    <dimen name="recents_grid_inter_task_padding">15dp</dimen>
-
 </resources>
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index 08b8988..93b6965 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -44,22 +44,6 @@
         <item name="android:layout_marginBottom">0dp</item>
     </style>
 
-    <!-- Grid-based Recents theme. -->
-    <style name="RecentsTheme.Grid">
-        <item name="android:windowBackground">@color/transparent</item>
-        <item name="android:colorBackgroundCacheHint">@null</item>
-        <item name="android:windowShowWallpaper">true</item>
-        <item name="android:windowDisablePreview">true</item>
-        <item name="clearAllStyle">@style/ClearAllButtonLargeMargins</item>
-    </style>
-
-    <style name="ClearAllButtonLargeMargins">
-        <item name="android:layout_marginStart">@dimen/recents_grid_clear_all_margin_left</item>
-        <item name="android:layout_marginTop">@dimen/recents_grid_clear_all_margin_top</item>
-        <item name="android:layout_marginEnd">@dimen/recents_grid_clear_all_margin_right</item>
-        <item name="android:layout_marginBottom">@dimen/recents_grid_clear_all_margin_bottom</item>
-    </style>
-
     <!-- Performance optimized Recents theme (no wallpaper) -->
     <style name="RecentsTheme.NoWallpaper">
         <item name="android:windowBackground">@android:color/black</item>
diff --git a/packages/SystemUI/src/com/android/systemui/recents/Recents.java b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
index d9fc2fc..0265c9e 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/Recents.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
@@ -57,7 +57,6 @@
 import com.android.systemui.recents.events.ui.RecentsDrawnEvent;
 import com.android.systemui.recents.misc.SystemServicesProxy;
 import com.android.systemui.recents.model.RecentsTaskLoader;
-import com.android.systemui.recents.grid.RecentsGridImpl;
 import com.android.systemui.recents.tv.RecentsTvImpl;
 import com.android.systemui.stackdivider.Divider;
 
@@ -84,7 +83,6 @@
     static {
         RECENTS_ACTIVITIES.add(RecentsImpl.RECENTS_ACTIVITY);
         RECENTS_ACTIVITIES.add(RecentsTvImpl.RECENTS_TV_ACTIVITY);
-        RECENTS_ACTIVITIES.add(RecentsGridImpl.RECENTS_MOSAIC_ACTIVITY);
     }
 
     // Purely for experimentation
diff --git a/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridActivity.java b/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridActivity.java
deleted file mode 100644
index 71c2148..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridActivity.java
+++ /dev/null
@@ -1,504 +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.systemui.recents.grid;
-
-import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.content.res.Configuration;
-import android.content.res.Resources;
-import android.graphics.Point;
-import android.graphics.Rect;
-import android.os.Bundle;
-import android.util.DisplayMetrics;
-import android.view.Gravity;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.WindowManager;
-import android.view.animation.Animation;
-import android.view.animation.AnimationSet;
-import android.view.animation.DecelerateInterpolator;
-import android.view.animation.ScaleAnimation;
-import android.view.animation.TranslateAnimation;
-import android.widget.FrameLayout;
-import android.widget.TextView;
-
-import com.android.internal.logging.MetricsLogger;
-import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.systemui.R;
-import com.android.systemui.recents.Recents;
-import com.android.systemui.recents.RecentsActivity;
-import com.android.systemui.recents.RecentsActivityLaunchState;
-import com.android.systemui.recents.RecentsConfiguration;
-import com.android.systemui.recents.RecentsImpl;
-import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.events.activity.ConfigurationChangedEvent;
-import com.android.systemui.recents.events.activity.HideRecentsEvent;
-import com.android.systemui.recents.events.activity.LaunchNextTaskRequestEvent;
-import com.android.systemui.recents.events.activity.LaunchTaskEvent;
-import com.android.systemui.recents.events.activity.ToggleRecentsEvent;
-import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent;
-import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent;
-import com.android.systemui.recents.events.ui.DeleteTaskDataEvent;
-import com.android.systemui.recents.events.ui.DismissAllTaskViewsEvent;
-import com.android.systemui.recents.events.ui.DismissTaskViewEvent;
-import com.android.systemui.recents.events.ui.TaskViewDismissedEvent;
-import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.Utilities;
-import com.android.systemui.recents.model.RecentsTaskLoadPlan;
-import com.android.systemui.recents.model.RecentsTaskLoader;
-import com.android.systemui.recents.model.Task;
-import com.android.systemui.recents.model.TaskStack;
-import com.android.systemui.recents.views.TaskView;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-
-/**
- * The main grid recents activity started by the RecentsImpl.
- */
-public class RecentsGridActivity extends Activity {
-    public final static int MAX_VISIBLE_TASKS = 9;
-
-    private final static String TAG = "RecentsGridActivity";
-    private final static int TITLE_BAR_HEIGHT_DP = 64;
-
-    private ArrayList<Integer> mMargins = new ArrayList<>();
-
-    private TaskStack mTaskStack;
-    private ArrayList<Task> mTasks = new ArrayList<>();
-    private ArrayList<TaskView> mTaskViews = new ArrayList<>();
-    private ArrayList<Rect> mTaskViewRects;
-    private FrameLayout mRecentsView;
-    private TextView mEmptyView;
-    private View mClearAllButton;
-    private int mLastDisplayOrientation = Configuration.ORIENTATION_UNDEFINED;
-    private int mLastDisplayDensity;
-    private Rect mDisplayRect = new Rect();
-    private LayoutInflater mInflater;
-    private boolean mTouchExplorationEnabled;
-    private Point mScreenSize;
-    private int mTitleBarHeightPx;
-    private int mStatusBarHeightPx;
-    private int mNavigationBarHeightPx;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.recents_grid);
-        SystemServicesProxy ssp = Recents.getSystemServices();
-
-        Resources res = getResources();
-        Integer[] margins = {
-                res.getDimensionPixelSize(R.dimen.recents_grid_margin_left),
-                res.getDimensionPixelSize(R.dimen.recents_grid_margin_top),
-                res.getDimensionPixelSize(R.dimen.recents_grid_margin_right),
-                res.getDimensionPixelSize(R.dimen.recents_grid_margin_bottom),
-        };
-        mMargins.addAll(Arrays.asList(margins));
-
-        mInflater = LayoutInflater.from(this);
-        Configuration appConfiguration = Utilities.getAppConfiguration(this);
-        mDisplayRect = ssp.getDisplayRect();
-        mLastDisplayOrientation = appConfiguration.orientation;
-        mLastDisplayDensity = appConfiguration.densityDpi;
-        mTouchExplorationEnabled = ssp.isTouchExplorationEnabled();
-        mScreenSize = new Point();
-        getWindowManager().getDefaultDisplay().getRealSize(mScreenSize);
-        DisplayMetrics metrics = res.getDisplayMetrics();
-        mTitleBarHeightPx = (int) (TITLE_BAR_HEIGHT_DP *
-                ((float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT));
-        mStatusBarHeightPx = res.getDimensionPixelSize(R.dimen.status_bar_height);
-        mNavigationBarHeightPx = res.getDimensionPixelSize(R.dimen.navigation_bar_height);
-
-        mRecentsView = (FrameLayout) findViewById(R.id.recents_view);
-        mRecentsView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
-                View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
-                View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
-        getWindow().getAttributes().privateFlags |=
-                WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY;
-        mEmptyView = (TextView) mInflater.inflate(R.layout.recents_empty, mRecentsView, false);
-        mClearAllButton = findViewById(R.id.button);
-
-        FrameLayout.LayoutParams emptyViewLayoutParams = new FrameLayout.LayoutParams(
-            FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT);
-        emptyViewLayoutParams.gravity = Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL;
-        mEmptyView.setLayoutParams(emptyViewLayoutParams);
-        mRecentsView.addView(mEmptyView);
-
-        mClearAllButton.setVisibility(View.VISIBLE);
-        FrameLayout.LayoutParams lp =
-                (FrameLayout.LayoutParams) mClearAllButton.getLayoutParams();
-        lp.gravity = Gravity.END;
-
-        mClearAllButton.setOnClickListener(v -> {
-            EventBus.getDefault().send(new DismissAllTaskViewsEvent());
-        });
-
-        mRecentsView.setOnClickListener(v -> {
-            EventBus.getDefault().send(new HideRecentsEvent(
-                    false /* triggeredFromAltTab */, false /* triggeredFromHomeKey */));
-        });
-
-        EventBus.getDefault().register(this, RecentsActivity.EVENT_BUS_PRIORITY);
-    }
-
-    private TaskView createView() {
-        return (TaskView) mInflater.inflate(R.layout.recents_task_view, mRecentsView, false);
-    }
-
-    private void removeTaskViews() {
-        for (View taskView : mTaskViews) {
-            ViewGroup parent = (ViewGroup) taskView.getParent();
-            if (parent != null) {
-                parent.removeView(taskView);
-            }
-        }
-    }
-
-    private void clearTaskViews() {
-        removeTaskViews();
-        mTaskViews.clear();
-    }
-
-    private TaskView getChildViewForTask(Task task) {
-        for (TaskView tv : mTaskViews) {
-            if (tv.getTask() == task) {
-                return tv;
-            }
-        }
-        return null;
-    }
-
-    /**
-     * Starts animations for each task view to either enlarge it to the size of the screen (when
-     * launching a task), or (if {@code reverse} is true, to reduce it from the size of the screen
-     * back to its place in the recents layout (when opening recents).
-     * @param animationListener An animation listener for executing code before or after the
-     *         animations run.
-     * @param reverse Whether the blow-up animations should be run in reverse.
-     */
-    private void startBlowUpAnimations(Animation.AnimationListener animationListener,
-            boolean reverse) {
-        if (mTaskViews.size() == 0) {
-            return;
-        }
-        int screenWidth = mLastDisplayOrientation == Configuration.ORIENTATION_LANDSCAPE
-                ? mScreenSize.x : mScreenSize.y;
-        int screenHeight = mLastDisplayOrientation == Configuration.ORIENTATION_LANDSCAPE
-                ? mScreenSize.y : mScreenSize.x;
-        screenHeight -= mStatusBarHeightPx + mNavigationBarHeightPx;
-        for (int i = 0; i < mTaskViews.size(); i++) {
-            View tv = mTaskViews.get(i);
-            AnimationSet animations = new AnimationSet(true /* shareInterpolator */);
-            animations.setInterpolator(new DecelerateInterpolator());
-            if (i == 0 && animationListener != null) {
-                animations.setAnimationListener(animationListener);
-            }
-            animations.setFillBefore(reverse);
-            animations.setFillAfter(!reverse);
-            Rect initialRect = mTaskViewRects.get(mTaskViewRects.size() - 1 - i);
-            int xDelta = - initialRect.left;
-            int yDelta = - initialRect.top - mTitleBarHeightPx + mStatusBarHeightPx;
-            TranslateAnimation translate = new TranslateAnimation(
-                    reverse ? xDelta : 0, reverse ? 0 : xDelta,
-                    reverse ? yDelta : 0, reverse ? 0 : yDelta);
-            translate.setDuration(250);
-            animations.addAnimation(translate);
-
-
-            float xScale = (float) screenWidth / (float) initialRect.width();
-            float yScale = (float) screenHeight /
-                    ((float) initialRect.height() - mTitleBarHeightPx);
-            ScaleAnimation scale = new ScaleAnimation(
-                    reverse ? xScale : 1, reverse ? 1 : xScale,
-                    reverse ? yScale : 1, reverse ? 1 : yScale,
-                    Animation.ABSOLUTE, 0, Animation.ABSOLUTE, mStatusBarHeightPx);
-            scale.setDuration(300);
-            animations.addAnimation(scale);
-
-            tv.startAnimation(animations);
-        }
-    }
-
-    private void updateControlVisibility() {
-        boolean empty = (mTasks.size() == 0);
-        mClearAllButton.setVisibility(empty ? View.INVISIBLE : View.VISIBLE);
-        mEmptyView.setVisibility(empty ? View.VISIBLE : View.INVISIBLE);
-        if (empty) {
-            mEmptyView.bringToFront();
-        }
-    }
-
-    private void updateModel() {
-        RecentsTaskLoader loader = Recents.getTaskLoader();
-        RecentsTaskLoadPlan plan = RecentsImpl.consumeInstanceLoadPlan();
-        if (plan == null) {
-            plan = loader.createLoadPlan(this);
-        }
-        RecentsConfiguration config = Recents.getConfiguration();
-        RecentsActivityLaunchState launchState = config.getLaunchState();
-        if (!plan.hasTasks()) {
-            loader.preloadTasks(plan, -1, !launchState.launchedFromHome);
-        }
-        mTaskStack = plan.getTaskStack();
-        RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
-        loadOpts.runningTaskId = launchState.launchedToTaskId;
-        loadOpts.numVisibleTasks = MAX_VISIBLE_TASKS;
-        loadOpts.numVisibleTaskThumbnails = MAX_VISIBLE_TASKS;
-        loader.loadTasks(this, plan, loadOpts);
-
-        mTasks = mTaskStack.getStackTasks();
-    }
-
-    private void updateViews() {
-        int screenWidth = mLastDisplayOrientation == Configuration.ORIENTATION_LANDSCAPE
-                ? mScreenSize.x : mScreenSize.y;
-        int screenHeight = mLastDisplayOrientation == Configuration.ORIENTATION_LANDSCAPE
-                ? mScreenSize.y : mScreenSize.x;
-        int paddingPixels = getResources().getDimensionPixelSize(
-                R.dimen.recents_grid_inter_task_padding);
-        mTaskViewRects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                mTasks.size(), screenWidth, screenHeight, getAppRectRatio(), paddingPixels,
-                mMargins, mTitleBarHeightPx);
-        boolean recycleViews = (mTaskViews.size() == mTasks.size());
-        if (!recycleViews) {
-            clearTaskViews();
-        }
-        for (int i = 0; i < mTasks.size(); i++) {
-            Task task = mTasks.get(i);
-            // We keep the same ordering in the model as other Recents flavors (older tasks are
-            // first in the stack) so that the logic can be similar, but we reverse the order
-            // when placing views on the screen so that most recent tasks are displayed first.
-            Rect rect = mTaskViewRects.get(mTaskViewRects.size() - 1 - i);
-            TaskView taskView;
-            if (recycleViews) {
-                taskView = mTaskViews.get(i);
-            } else {
-                taskView = createView();
-            }
-            taskView.onTaskBound(task, mTouchExplorationEnabled, mLastDisplayOrientation,
-                    mDisplayRect);
-            Recents.getTaskLoader().loadTaskData(task);
-            taskView.setTouchEnabled(true);
-            // Show dismiss button right away.
-            taskView.startNoUserInteractionAnimation();
-            taskView.setLayoutParams(new FrameLayout.LayoutParams(rect.width(), rect.height()));
-            taskView.setTranslationX(rect.left);
-            taskView.setTranslationY(rect.top);
-            if (!recycleViews) {
-                mRecentsView.addView(taskView);
-                mTaskViews.add(taskView);
-            }
-        }
-        updateControlVisibility();
-    }
-
-    private float getAppRectRatio() {
-        if (mLastDisplayOrientation == Configuration.ORIENTATION_LANDSCAPE) {
-            return (float) mScreenSize.x /
-                    (float) (mScreenSize.y - mStatusBarHeightPx - mNavigationBarHeightPx);
-        } else {
-            return (float) mScreenSize.y /
-                    (float) (mScreenSize.x - mStatusBarHeightPx - mNavigationBarHeightPx);
-        }
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, true));
-        updateModel();
-        updateViews();
-        if (mTaskViews.size() > 0) {
-            mTaskViews.get(mTaskViews.size() - 1).bringToFront();
-        }
-        startBlowUpAnimations(new Animation.AnimationListener() {
-            @Override
-            public void onAnimationStart(Animation animation) { }
-
-            @Override
-            public void onAnimationEnd(Animation animation) {
-                updateViews();
-            }
-
-            @Override
-            public void onAnimationRepeat(Animation animation) { }
-        }, true /* reverse */);
-    }
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, false));
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        EventBus.getDefault().unregister(this);
-    }
-
-    @Override
-    public void onBackPressed() {
-        // Back behaves like the recents button so just trigger a toggle event.
-        EventBus.getDefault().send(new ToggleRecentsEvent());
-    }
-
-    @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        super.onConfigurationChanged(newConfig);
-        // Notify of the config change.
-        Configuration newDeviceConfiguration = Utilities.getAppConfiguration(this);
-        mDisplayRect = Recents.getSystemServices().getDisplayRect();
-        int numStackTasks = mTaskStack.getStackTaskCount();
-        EventBus.getDefault().send(new ConfigurationChangedEvent(false /* fromMultiWindow */,
-                mLastDisplayOrientation != newDeviceConfiguration.orientation,
-                mLastDisplayDensity != newDeviceConfiguration.densityDpi, numStackTasks > 0));
-        mLastDisplayOrientation = newDeviceConfiguration.orientation;
-        mLastDisplayDensity = newDeviceConfiguration.densityDpi;
-        updateViews();
-    }
-
-    void dismissRecentsToHome() {
-        Intent startMain = new Intent(Intent.ACTION_MAIN);
-        startMain.addCategory(Intent.CATEGORY_HOME);
-        startActivity(startMain);
-    }
-
-    /** Launches the task that recents was launched from if possible. */
-    boolean launchPreviousTask() {
-        if (mRecentsView != null) {
-            Task task = mTaskStack.getLaunchTarget();
-            if (task != null) {
-                TaskView taskView = getChildViewForTask(task);
-                EventBus.getDefault().send(new LaunchTaskEvent(taskView, task, null,
-                        INVALID_STACK_ID, false));
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /** Dismisses recents back to the launch target task. */
-    boolean dismissRecentsToLaunchTargetTaskOrHome() {
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.isRecentsActivityVisible()) {
-            // If we can launch the task that Recents was launched from, do that, otherwise go home.
-            if (launchPreviousTask()) return true;
-            dismissRecentsToHome();
-        }
-        return false;
-    }
-
-    /**** EventBus events ****/
-
-    public final void onBusEvent(HideRecentsEvent event) {
-        if (event.triggeredFromAltTab) {
-            dismissRecentsToLaunchTargetTaskOrHome();
-        } else if (event.triggeredFromHomeKey) {
-            dismissRecentsToHome();
-        } else {
-            // Fall through tap on the background view but not on any of the tasks.
-            dismissRecentsToHome();
-        }
-    }
-
-    public final void onBusEvent(ToggleRecentsEvent event) {
-        dismissRecentsToLaunchTargetTaskOrHome();
-    }
-
-    public final void onBusEvent(DismissTaskViewEvent event) {
-        int taskIndex = mTaskViews.indexOf(event.taskView);
-        if (taskIndex != -1) {
-            mTasks.remove(taskIndex);
-            ((ViewGroup) event.taskView.getParent()).removeView(event.taskView);
-            mTaskViews.remove(taskIndex);
-            EventBus.getDefault().send(
-                    new TaskViewDismissedEvent(event.taskView.getTask(), event.taskView, null));
-        }
-    }
-
-    public final void onBusEvent(TaskViewDismissedEvent event) {
-        mRecentsView.announceForAccessibility(this.getString(
-            R.string.accessibility_recents_item_dismissed, event.task.title));
-        updateControlVisibility();
-
-        EventBus.getDefault().send(new DeleteTaskDataEvent(event.task));
-
-        MetricsLogger.action(this, MetricsEvent.OVERVIEW_DISMISS,
-                event.task.key.getComponent().toString());
-    }
-
-    public final void onBusEvent(DeleteTaskDataEvent event) {
-        // Remove any stored data from the loader.
-        RecentsTaskLoader loader = Recents.getTaskLoader();
-        loader.deleteTaskData(event.task, false);
-
-        // Remove the task from activity manager.
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        ssp.removeTask(event.task.key.id);
-    }
-
-    public final void onBusEvent(final DismissAllTaskViewsEvent event) {
-        // Keep track of the tasks which will have their data removed.
-        ArrayList<Task> tasks = new ArrayList<>(mTaskStack.getStackTasks());
-        mRecentsView.announceForAccessibility(this.getString(
-                R.string.accessibility_recents_all_items_dismissed));
-        mTaskStack.removeAllTasks();
-        for (int i = tasks.size() - 1; i >= 0; i--) {
-            EventBus.getDefault().send(new DeleteTaskDataEvent(tasks.get(i)));
-        }
-        mTasks = new ArrayList<>();
-        updateModel();
-        updateViews();
-
-        MetricsLogger.action(this, MetricsEvent.OVERVIEW_DISMISS_ALL);
-    }
-
-    public final void onBusEvent(AllTaskViewsDismissedEvent event) {
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (!ssp.hasDockedTask()) {
-            dismissRecentsToHome();
-        }
-    }
-
-    public final void onBusEvent(LaunchNextTaskRequestEvent event) {
-        if (mTaskStack.getTaskCount() > 0) {
-            Task launchTask = mTaskStack.getNextLaunchTarget();
-            TaskView launchTaskView = getChildViewForTask(launchTask);
-            if (launchTaskView != null) {
-                EventBus.getDefault().send(new LaunchTaskEvent(launchTaskView,
-                        launchTask, null, INVALID_STACK_ID, false /* screenPinningRequested */));
-                MetricsLogger.action(this, MetricsEvent.OVERVIEW_LAUNCH_PREVIOUS_TASK,
-                        launchTask.key.getComponent().toString());
-                return;
-            }
-        }
-        // We couldn't find a matching task view, or there are no tasks. Just hide recents back
-        // to home.
-        EventBus.getDefault().send(new HideRecentsEvent(false, true));
-    }
-
-    public final void onBusEvent(LaunchTaskEvent event) {
-        event.taskView.bringToFront();
-        startActivity(event.task.key.baseIntent);
-        // Eventually we should start blow-up animations here, but we need to make sure it's done
-        // in parallel with starting the activity so that we don't introduce unneeded latency.
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridImpl.java b/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridImpl.java
deleted file mode 100644
index 41acaa0..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/grid/RecentsGridImpl.java
+++ /dev/null
@@ -1,47 +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.systemui.recents.grid;
-
-import android.app.ActivityManager;
-import android.content.Context;
-import android.content.Intent;
-import android.os.UserHandle;
-
-import com.android.systemui.recents.RecentsImpl;
-import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent;
-
-public class RecentsGridImpl extends RecentsImpl {
-    public static final String RECENTS_MOSAIC_ACTIVITY =
-            "com.android.systemui.recents.grid.RecentsGridActivity";
-
-    public RecentsGridImpl(Context context) {
-        super(context);
-    }
-
-    @Override
-    protected void startRecentsActivity(ActivityManager.RunningTaskInfo runningTask,
-            boolean isHomeStackVisible, boolean animate, int growTarget) {
-        Intent intent = new Intent();
-        intent.setClassName(RECENTS_PACKAGE, RECENTS_MOSAIC_ACTIVITY);
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
-                | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
-                | Intent.FLAG_ACTIVITY_TASK_ON_HOME);
-
-        mContext.startActivityAsUser(intent, UserHandle.CURRENT);
-        EventBus.getDefault().send(new RecentsActivityStartingEvent());
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithm.java
deleted file mode 100644
index 648f2f0..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithm.java
+++ /dev/null
@@ -1,157 +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.systemui.recents.grid;
-
-import android.graphics.Rect;
-import android.util.Log;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-class TaskGridLayoutAlgorithm {
-
-    public enum VerticalGravity {
-        START, END, CENTER
-    }
-
-    public static final List<Integer> ZERO_MARGIN = new ArrayList<>();
-    static {
-        Integer[] zero = {0, 0, 0, 0};
-        ZERO_MARGIN.addAll(Arrays.asList(zero));
-    }
-    private static final String TAG = "TaskGridLayoutAlgorithm";
-
-    /**
-     * Calculates the adequate rectangles for the specified number of tasks to be layed out on
-     * the screen.
-     * @param count The number of task views to layout.
-     * @param containerWidth The width of the whole area containing those tasks.
-     * @param containerHeight The height of the whole area containing those tasks.
-     * @param screenRatio The ratio of the device's screen, so that tasks have the same aspect
-     *         ratio (ignoring the title bar).
-     * @param padding The amount of padding, in pixels, in between task views.
-     * @param margins The amount of space to be left blank around the area on the left, top, right
-     *         and bottom.
-     * @param titleBarHeight The height, in pixels, of the task views title bar.
-     * @return A list of rectangles to be used for layout.
-     */
-    static ArrayList<Rect> getRectsForTaskCount(int count, int containerWidth, int containerHeight,
-            float screenRatio, int padding, List<Integer> margins, int titleBarHeight) {
-        return getRectsForTaskCount(count, containerWidth, containerHeight,  screenRatio, padding,
-                margins, titleBarHeight, null, VerticalGravity.CENTER);
-    }
-
-    private static ArrayList<Rect> getRectsForTaskCount(int count, int containerWidth,
-            int containerHeight, float screenRatio, int padding, List<Integer> margins,
-            int titleBarHeight, Rect preCalculatedTile, VerticalGravity gravity) {
-        ArrayList<Rect> rects = new ArrayList<>(count);
-        boolean landscape = (containerWidth > containerHeight);
-        containerWidth -= margins.get(0) + margins.get(2);
-        containerHeight -= margins.get(1) + margins.get(3);
-
-        // We support at most 9 tasks in this layout.
-        count = Math.min(count, RecentsGridActivity.MAX_VISIBLE_TASKS);
-
-        if (count == 0) {
-            return rects;
-        }
-        if (count <= 3) {
-            // Base case: single line.
-            int taskWidth, taskHeight;
-            if (preCalculatedTile != null) {
-                taskWidth = preCalculatedTile.width();
-                taskHeight = preCalculatedTile.height();
-            } else {
-                // Divide available width in equal parts.
-                int maxTaskWidth = (containerWidth - (count - 1) * padding) / count;
-                int maxTaskHeight = containerHeight;
-                if (maxTaskHeight >= maxTaskWidth / screenRatio + titleBarHeight) {
-                    // Width bound.
-                    taskWidth = maxTaskWidth;
-                    taskHeight = (int) (maxTaskWidth / screenRatio + titleBarHeight);
-                } else {
-                    // Height bound.
-                    taskHeight = maxTaskHeight;
-                    taskWidth = (int) ((taskHeight - titleBarHeight) * screenRatio);
-                }
-            }
-            int emptySpaceX = containerWidth - (count * taskWidth) - (count - 1) * padding;
-            int emptySpaceY = containerHeight - taskHeight;
-            for (int i = 0; i < count; i++) {
-                int left = emptySpaceX / 2 + i * taskWidth + i * padding;
-                int top;
-                switch (gravity) {
-                    case CENTER:
-                        top = emptySpaceY / 2;
-                        break;
-                    case END:
-                        top = emptySpaceY;
-                        break;
-                    case START:
-                    default:
-                        top = 0;
-                        break;
-                }
-                Rect rect = new Rect(left, top, left + taskWidth, top + taskHeight);
-                rect.offset(margins.get(0), margins.get(1));
-                rects.add(rect);
-            }
-        } else if (count < 7) {
-            // Two lines.
-            int lineHeight = (containerHeight - padding) / 2;
-            int lineTaskCount = (int) Math.ceil((double) count / 2);
-            List<Rect> rectsA = getRectsForTaskCount(lineTaskCount, containerWidth, lineHeight,
-                    screenRatio, padding, ZERO_MARGIN, titleBarHeight, null, VerticalGravity.END);
-            List<Rect> rectsB = getRectsForTaskCount(count - lineTaskCount, containerWidth,
-                    lineHeight, screenRatio, padding, ZERO_MARGIN, titleBarHeight, rectsA.get(0),
-                    VerticalGravity.START);
-            for (int i = 0; i < rectsA.size(); i++) {
-                rectsA.get(i).offset(margins.get(0), margins.get(1));
-            }
-            for (int i = 0; i < rectsB.size(); i++) {
-                rectsB.get(i).offset(margins.get(0), margins.get(1) + lineHeight + padding);
-            }
-            rects.addAll(rectsA);
-            rects.addAll(rectsB);
-        } else {
-            // Three lines.
-            int lineHeight = (containerHeight - 2 * padding) / 3;
-            int lineTaskCount = (int) Math.ceil((double) count / 3);
-            List<Rect> rectsA = getRectsForTaskCount(lineTaskCount, containerWidth, lineHeight,
-                    screenRatio, padding, ZERO_MARGIN, titleBarHeight, null, VerticalGravity.END);
-            List<Rect> rectsB = getRectsForTaskCount(lineTaskCount, containerWidth, lineHeight,
-                    screenRatio,  padding, ZERO_MARGIN, titleBarHeight, rectsA.get(0),
-                    VerticalGravity.END);
-            List<Rect> rectsC = getRectsForTaskCount(count - (2 * lineTaskCount), containerWidth,
-                    lineHeight, screenRatio, padding, ZERO_MARGIN, titleBarHeight, rectsA.get(0),
-                    VerticalGravity.START);
-            for (int i = 0; i < rectsA.size(); i++) {
-                rectsA.get(i).offset(margins.get(0), margins.get(1));
-            }
-            for (int i = 0; i < rectsB.size(); i++) {
-                rectsB.get(i).offset(margins.get(0), margins.get(1) + lineHeight + padding);
-            }
-            for (int i = 0; i < rectsC.size(); i++) {
-                rectsC.get(i).offset(margins.get(0), margins.get(1) + 2 * (lineHeight + padding));
-            }
-            rects.addAll(rectsA);
-            rects.addAll(rectsB);
-            rects.addAll(rectsC);
-        }
-        return rects;
-    }
-}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithmTest.java b/packages/SystemUI/tests/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithmTest.java
deleted file mode 100644
index a9f811b..0000000
--- a/packages/SystemUI/tests/src/com/android/systemui/recents/grid/TaskGridLayoutAlgorithmTest.java
+++ /dev/null
@@ -1,120 +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.systemui.recents.grid;
-
-import android.graphics.Rect;
-import android.test.suitebuilder.annotation.SmallTest;
-import com.android.systemui.SysuiTestCase;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import static junit.framework.Assert.assertEquals;
-import static junit.framework.Assert.assertTrue;
-
-import org.junit.Test;
-
-@SmallTest
-public class TaskGridLayoutAlgorithmTest extends SysuiTestCase {
-
-    private static final List<Integer> ZERO_MARGIN = TaskGridLayoutAlgorithm.ZERO_MARGIN;
-
-    @Test
-    public void testOneTile() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                1, 1000, 1000, 1 /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(1, rects.size());
-        Rect singleRect = rects.get(0);
-        assertEquals(1000, singleRect.width());
-    }
-
-    @Test
-    public void testTwoTilesLandscape() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                2, 1200, 500, 1.2f /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(2, rects.size());
-        for (Rect rect : rects) {
-            assertEquals(600, rect.width());
-            assertEquals(499, rect.height());
-        }
-    }
-
-    @Test
-    public void testTwoTilesLandscapeWithPadding() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                2, 1200, 500, 1.19f /* screenRatio */, 10 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(2, rects.size());
-        Rect rectA = rects.get(0);
-        Rect rectB = rects.get(1);
-        assertEquals(595, rectA.width());
-        assertEquals(595, rectB.width());
-        assertEquals(605, rectB.left);
-    }
-
-    @Test
-    public void testTwoTilesPortrait() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                2, 500, 1200, 1 /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(2, rects.size());
-        for (Rect rect : rects) {
-            assertEquals(250, rect.width());
-            assertEquals(250, rect.height());
-        }
-    }
-
-    @Test
-    public void testThreeTiles() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                3, 1200, 500, 2 /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(3, rects.size());
-        for (Rect rect : rects) {
-            assertEquals(400, rect.width());
-            assertEquals(200, rect.height());
-        }
-    }
-
-    @Test
-    public void testFourTiles() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                4, 1200, 500, 2.4f /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(4, rects.size());
-        for (Rect rect : rects) {
-            assertEquals(600, rect.width());
-            assertEquals(249, rect.height());
-        }
-        Rect rectD = rects.get(3);
-        assertEquals(600, rectD.left);
-        assertEquals(250, rectD.top);
-    }
-
-    @Test
-    public void testNineTiles() {
-        List<Rect> rects = TaskGridLayoutAlgorithm.getRectsForTaskCount(
-                9, 1200, 600, 2 /* screenRatio */, 0 /* padding */, ZERO_MARGIN, 0);
-        assertEquals(9, rects.size());
-        for (Rect rect : rects) {
-            assertEquals(400, rect.width());
-            assertEquals(200, rect.height());
-        }
-        Rect rectE = rects.get(4);
-        assertEquals(400, rectE.left);
-        assertEquals(200, rectE.top);
-        Rect rectI = rects.get(8);
-        assertEquals(800, rectI.left);
-        assertEquals(400, rectI.top);
-    }}
-
diff --git a/services/core/java/com/android/server/NetworkScoreService.java b/services/core/java/com/android/server/NetworkScoreService.java
index a1c3564..f712f12 100644
--- a/services/core/java/com/android/server/NetworkScoreService.java
+++ b/services/core/java/com/android/server/NetworkScoreService.java
@@ -16,7 +16,11 @@
 
 package com.android.server;
 
+import static android.net.NetworkRecommendationProvider.EXTRA_RECOMMENDATION_RESULT;
+import static android.net.NetworkRecommendationProvider.EXTRA_SEQUENCE;
+
 import android.Manifest.permission;
+import android.annotation.Nullable;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.ContentResolver;
@@ -25,27 +29,29 @@
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
+import android.database.ContentObserver;
+import android.net.INetworkRecommendationProvider;
 import android.net.INetworkScoreCache;
 import android.net.INetworkScoreService;
 import android.net.NetworkKey;
-import android.net.NetworkScoreManager;
 import android.net.NetworkScorerAppManager;
 import android.net.NetworkScorerAppManager.NetworkScorerAppData;
 import android.net.RecommendationRequest;
 import android.net.RecommendationResult;
 import android.net.ScoredNetwork;
+import android.net.Uri;
 import android.net.wifi.WifiConfiguration;
-import android.os.Binder;
+import android.os.Bundle;
 import android.os.IBinder;
+import android.os.IRemoteCallback;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
 import android.os.UserHandle;
-import android.provider.Settings;
-import android.text.TextUtils;
+import android.provider.Settings.Global;
 import android.util.ArrayMap;
 import android.util.Log;
+import android.util.TimedRemoteCaller;
 
-import com.android.internal.R;
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.content.PackageMonitor;
@@ -59,6 +65,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.TimeoutException;
 import java.util.function.Consumer;
 
 /**
@@ -67,17 +74,20 @@
  */
 public class NetworkScoreService extends INetworkScoreService.Stub {
     private static final String TAG = "NetworkScoreService";
-    private static final boolean DBG = false;
+    private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
 
     private final Context mContext;
     private final NetworkScorerAppManager mNetworkScorerAppManager;
+    private final RequestRecommendationCaller mRequestRecommendationCaller;
     @GuardedBy("mScoreCaches")
     private final Map<Integer, RemoteCallbackList<INetworkScoreCache>> mScoreCaches;
     /** Lock used to update mPackageMonitor when scorer package changes occur. */
     private final Object mPackageMonitorLock = new Object[0];
+    private final Object mServiceConnectionLock = new Object[0];
 
     @GuardedBy("mPackageMonitorLock")
     private NetworkScorerPackageMonitor mPackageMonitor;
+    @GuardedBy("mServiceConnectionLock")
     private ScoringServiceConnection mServiceConnection;
 
     private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() {
@@ -99,10 +109,10 @@
      * manages the service connection.
      */
     private class NetworkScorerPackageMonitor extends PackageMonitor {
-        final String mRegisteredPackage;
+        final List<String> mPackagesToWatch;
 
-        private NetworkScorerPackageMonitor(String mRegisteredPackage) {
-            this.mRegisteredPackage = mRegisteredPackage;
+        private NetworkScorerPackageMonitor(List<String> packagesToWatch) {
+            mPackagesToWatch = packagesToWatch;
         }
 
         @Override
@@ -136,7 +146,7 @@
         }
 
         private void evaluateBinding(String scorerPackageName, boolean forceUnbind) {
-            if (mRegisteredPackage.equals(scorerPackageName)) {
+            if (mPackagesToWatch.contains(scorerPackageName)) {
                 if (DBG) {
                     Log.d(TAG, "Evaluating binding for: " + scorerPackageName
                             + ", forceUnbind=" + forceUnbind);
@@ -146,13 +156,14 @@
                 if (activeScorer == null) {
                     // Package change has invalidated a scorer, this will also unbind any service
                     // connection.
-                    Log.i(TAG, "Package " + mRegisteredPackage +
-                            " is no longer valid, disabling scoring.");
-                    setScorerInternal(null);
-                } else if (activeScorer.mScoringServiceClassName == null) {
-                    // The scoring service is not available, make sure it's unbound.
+                    if (DBG) Log.d(TAG, "No active scorers available.");
                     unbindFromScoringServiceIfNeeded();
-                } else { // The scoring service changed in some way.
+                } else if (activeScorer.packageName.equals(scorerPackageName)) {
+                    if (DBG) {
+                        Log.d(TAG, "Possible change to the active scorer: "
+                            + activeScorer.packageName);
+                    }
+                    // The scoring service changed in some way.
                     if (forceUnbind) {
                         unbindFromScoringServiceIfNeeded();
                     }
@@ -162,6 +173,27 @@
         }
     }
 
+    /**
+     * Reevaluates the service binding when the Settings toggle is changed.
+     */
+    private class SettingsObserver extends ContentObserver {
+
+        public SettingsObserver() {
+            super(null /*handler*/);
+        }
+
+        @Override
+        public void onChange(boolean selfChange) {
+            onChange(selfChange, null);
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            if (DBG) Log.d(TAG, String.format("onChange(%s, %s)", selfChange, uri));
+            bindToScoringServiceIfNeeded();
+        }
+    }
+
     public NetworkScoreService(Context context) {
       this(context, new NetworkScorerAppManager(context));
     }
@@ -176,24 +208,16 @@
         mContext.registerReceiverAsUser(
                 mUserIntentReceiver, UserHandle.SYSTEM, filter, null /* broadcastPermission*/,
                 null /* scheduler */);
+        // TODO(jjoslin): 12/15/16 - Make timeout configurable.
+        mRequestRecommendationCaller =
+            new RequestRecommendationCaller(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS);
     }
 
     /** Called when the system is ready to run third-party code but before it actually does so. */
     void systemReady() {
         if (DBG) Log.d(TAG, "systemReady");
-        ContentResolver cr = mContext.getContentResolver();
-        if (Settings.Global.getInt(cr, Settings.Global.NETWORK_SCORING_PROVISIONED, 0) == 0) {
-            // On first run, we try to initialize the scorer to the one configured at build time.
-            // This will be a no-op if the scorer isn't actually valid.
-            String defaultPackage = mContext.getResources().getString(
-                    R.string.config_defaultNetworkScorerPackageName);
-            if (!TextUtils.isEmpty(defaultPackage)) {
-                mNetworkScorerAppManager.setActiveScorer(defaultPackage);
-            }
-            Settings.Global.putInt(cr, Settings.Global.NETWORK_SCORING_PROVISIONED, 1);
-        }
-
         registerPackageMonitorIfNeeded();
+        registerRecommendationSettingObserverIfNeeded();
     }
 
     /** Called when the system is ready for us to start third-party code. */
@@ -207,29 +231,40 @@
         bindToScoringServiceIfNeeded();
     }
 
+    private void registerRecommendationSettingObserverIfNeeded() {
+        final List<String> providerPackages =
+            mNetworkScorerAppManager.getPotentialRecommendationProviderPackages();
+        if (!providerPackages.isEmpty()) {
+            final ContentResolver resolver = mContext.getContentResolver();
+            final Uri uri = Global.getUriFor(Global.NETWORK_RECOMMENDATIONS_ENABLED);
+            resolver.registerContentObserver(uri, false, new SettingsObserver());
+        }
+    }
+
     private void registerPackageMonitorIfNeeded() {
         if (DBG) Log.d(TAG, "registerPackageMonitorIfNeeded");
-        NetworkScorerAppData scorer = mNetworkScorerAppManager.getActiveScorer();
+        final List<String> providerPackages =
+            mNetworkScorerAppManager.getPotentialRecommendationProviderPackages();
         synchronized (mPackageMonitorLock) {
             // Unregister the current monitor if needed.
             if (mPackageMonitor != null) {
                 if (DBG) {
                     Log.d(TAG, "Unregistering package monitor for "
-                            + mPackageMonitor.mRegisteredPackage);
+                            + mPackageMonitor.mPackagesToWatch);
                 }
                 mPackageMonitor.unregister();
                 mPackageMonitor = null;
             }
 
-            // Create and register the monitor if a scorer is active.
-            if (scorer != null) {
-                mPackageMonitor = new NetworkScorerPackageMonitor(scorer.mPackageName);
+            // Create and register the monitor if there are packages that could be providers.
+            if (!providerPackages.isEmpty()) {
+                mPackageMonitor = new NetworkScorerPackageMonitor(providerPackages);
                 // TODO: Need to update when we support per-user scorers. http://b/23422763
                 mPackageMonitor.register(mContext, null /* thread */, UserHandle.SYSTEM,
                         false /* externalStorage */);
                 if (DBG) {
                     Log.d(TAG, "Registered package monitor for "
-                            + mPackageMonitor.mRegisteredPackage);
+                            + mPackageMonitor.mPackagesToWatch);
                 }
             }
         }
@@ -243,22 +278,24 @@
 
     private void bindToScoringServiceIfNeeded(NetworkScorerAppData scorerData) {
         if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded(" + scorerData + ")");
-        if (scorerData != null && scorerData.mScoringServiceClassName != null) {
-            ComponentName componentName =
-                    new ComponentName(scorerData.mPackageName, scorerData.mScoringServiceClassName);
-            // If we're connected to a different component then drop it.
-            if (mServiceConnection != null
-                    && !mServiceConnection.mComponentName.equals(componentName)) {
-                unbindFromScoringServiceIfNeeded();
-            }
+        if (scorerData != null && scorerData.recommendationServiceClassName != null) {
+            ComponentName componentName = new ComponentName(scorerData.packageName,
+                    scorerData.recommendationServiceClassName);
+            synchronized (mServiceConnectionLock) {
+                // If we're connected to a different component then drop it.
+                if (mServiceConnection != null
+                        && !mServiceConnection.mComponentName.equals(componentName)) {
+                    unbindFromScoringServiceIfNeeded();
+                }
 
-            // If we're not connected at all then create a new connection.
-            if (mServiceConnection == null) {
-                mServiceConnection = new ScoringServiceConnection(componentName);
-            }
+                // If we're not connected at all then create a new connection.
+                if (mServiceConnection == null) {
+                    mServiceConnection = new ScoringServiceConnection(componentName);
+                }
 
-            // Make sure the connection is connected (idempotent)
-            mServiceConnection.connect(mContext);
+                // Make sure the connection is connected (idempotent)
+                mServiceConnection.connect(mContext);
+            }
         } else { // otherwise make sure it isn't bound.
             unbindFromScoringServiceIfNeeded();
         }
@@ -266,10 +303,13 @@
 
     private void unbindFromScoringServiceIfNeeded() {
         if (DBG) Log.d(TAG, "unbindFromScoringServiceIfNeeded");
-        if (mServiceConnection != null) {
-            mServiceConnection.disconnect(mContext);
+        synchronized (mServiceConnectionLock) {
+            if (mServiceConnection != null) {
+                mServiceConnection.disconnect(mContext);
+            }
+            mServiceConnection = null;
         }
-        mServiceConnection = null;
+        clearInternal();
     }
 
     @Override
@@ -349,7 +389,8 @@
         // mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG);
         mContext.enforceCallingOrSelfPermission(permission.SCORE_NETWORKS, TAG);
 
-        return setScorerInternal(packageName);
+        // Scorers (recommendation providers) are selected and no longer set.
+        return false;
     }
 
     @Override
@@ -359,56 +400,13 @@
         if (mNetworkScorerAppManager.isCallerActiveScorer(getCallingUid()) ||
                 mContext.checkCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED) ==
                         PackageManager.PERMISSION_GRANTED) {
-            // The return value is discarded here because at this point, the call should always
-            // succeed. The only reason for failure is if the new package is not a valid scorer, but
-            // we're disabling scoring altogether here.
-            setScorerInternal(null /* packageName */);
+            // no-op for now but we could write to the setting if needed.
         } else {
             throw new SecurityException(
                     "Caller is neither the active scorer nor the scorer manager.");
         }
     }
 
-    /** Set the active scorer. Callers are responsible for checking permissions as appropriate. */
-    private boolean setScorerInternal(String packageName) {
-        if (DBG) Log.d(TAG, "setScorerInternal(" + packageName + ")");
-        long token = Binder.clearCallingIdentity();
-        try {
-            unbindFromScoringServiceIfNeeded();
-            // Preemptively clear scores even though the set operation could fail. We do this for
-            // safety as scores should never be compared across apps; in practice, Settings should
-            // only be allowing valid apps to be set as scorers, so failure here should be rare.
-            clearInternal();
-            // Get the scorer that is about to be replaced, if any, so we can notify it directly.
-            NetworkScorerAppData prevScorer = mNetworkScorerAppManager.getActiveScorer();
-            boolean result = mNetworkScorerAppManager.setActiveScorer(packageName);
-            // Unconditionally attempt to bind to the current scorer. If setActiveScorer() failed
-            // then we'll attempt to restore the previous binding (if any), otherwise an attempt
-            // will be made to bind to the new scorer.
-            bindToScoringServiceIfNeeded();
-            if (result) { // new scorer successfully set
-                registerPackageMonitorIfNeeded();
-
-                Intent intent = new Intent(NetworkScoreManager.ACTION_SCORER_CHANGED);
-                if (prevScorer != null) { // Directly notify the old scorer.
-                    intent.setPackage(prevScorer.mPackageName);
-                    // TODO: Need to update when we support per-user scorers. http://b/23422763
-                    mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM);
-                }
-
-                if (packageName != null) { // Then notify the new scorer
-                    intent.putExtra(NetworkScoreManager.EXTRA_NEW_SCORER, packageName);
-                    intent.setPackage(packageName);
-                    // TODO: Need to update when we support per-user scorers. http://b/23422763
-                    mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM);
-                }
-            }
-            return result;
-        } finally {
-            Binder.restoreCallingIdentity(token);
-        }
-    }
-
     /** Clear scores. Callers are responsible for checking permissions as appropriate. */
     private void clearInternal() {
         sendCallback(new Consumer<INetworkScoreCache>() {
@@ -464,7 +462,22 @@
 
     @Override
     public RecommendationResult requestRecommendation(RecommendationRequest request) {
-        // TODO(jjoslin): 11/25/16 - Update with real impl.
+        mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG);
+        throwIfCalledOnMainThread();
+        final INetworkRecommendationProvider provider = getRecommendationProvider();
+        if (provider != null) {
+            try {
+                return mRequestRecommendationCaller.getRecommendationResult(provider, request);
+            } catch (RemoteException | TimeoutException e) {
+                Log.w(TAG, "Failed to request a recommendation.", e);
+                // TODO(jjoslin): 12/15/16 - Keep track of failures.
+            }
+        }
+
+        if (DBG) {
+            Log.d(TAG, "Returning the default network recommendation.");
+        }
+
         WifiConfiguration selectedConfig = null;
         if (request != null) {
             selectedConfig = request.getCurrentSelectedConfig();
@@ -474,7 +487,19 @@
 
     @Override
     public boolean requestScores(NetworkKey[] networks) {
-        // TODO(jjoslin): 12/13/16 - Implement
+        mContext.enforceCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED, TAG);
+        final INetworkRecommendationProvider provider = getRecommendationProvider();
+        if (provider != null) {
+            try {
+                provider.requestScores(networks);
+                // TODO(jjoslin): 12/15/16 - Consider pushing null scores into the cache to prevent
+                // repeated requests for the same scores.
+                return true;
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed to request scores.", e);
+                // TODO(jjoslin): 12/15/16 - Keep track of failures.
+            }
+        }
         return false;
     }
 
@@ -486,7 +511,7 @@
             writer.println("Scoring is disabled.");
             return;
         }
-        writer.println("Current scorer: " + currentScorer.mPackageName);
+        writer.println("Current scorer: " + currentScorer.packageName);
 
         sendCallback(new Consumer<INetworkScoreCache>() {
             @Override
@@ -499,10 +524,12 @@
             }
         }, getScoreCacheLists());
 
-        if (mServiceConnection != null) {
-            mServiceConnection.dump(fd, writer, args);
-        } else {
-            writer.println("ScoringServiceConnection: null");
+        synchronized (mServiceConnectionLock) {
+            if (mServiceConnection != null) {
+                mServiceConnection.dump(fd, writer, args);
+            } else {
+                writer.println("ScoringServiceConnection: null");
+            }
         }
         writer.flush();
     }
@@ -535,10 +562,27 @@
         }
     }
 
+    private void throwIfCalledOnMainThread() {
+        if (Thread.currentThread() == mContext.getMainLooper().getThread()) {
+            throw new RuntimeException("Cannot invoke on the main thread");
+        }
+    }
+
+    @Nullable
+    private INetworkRecommendationProvider getRecommendationProvider() {
+        synchronized (mServiceConnectionLock) {
+            if (mServiceConnection != null) {
+                return mServiceConnection.getRecommendationProvider();
+            }
+        }
+        return null;
+    }
+
     private static class ScoringServiceConnection implements ServiceConnection {
         private final ComponentName mComponentName;
-        private boolean mBound = false;
-        private boolean mConnected = false;
+        private volatile boolean mBound = false;
+        private volatile boolean mConnected = false;
+        private volatile INetworkRecommendationProvider mRecommendationProvider;
 
         ScoringServiceConnection(ComponentName componentName) {
             mComponentName = componentName;
@@ -569,12 +613,19 @@
             } catch (RuntimeException e) {
                 Log.e(TAG, "Unbind failed.", e);
             }
+
+            mRecommendationProvider = null;
+        }
+
+        INetworkRecommendationProvider getRecommendationProvider() {
+            return mRecommendationProvider;
         }
 
         @Override
         public void onServiceConnected(ComponentName name, IBinder service) {
             if (DBG) Log.d(TAG, "ScoringServiceConnection: " + name.flattenToString());
             mConnected = true;
+            mRecommendationProvider = INetworkRecommendationProvider.Stub.asInterface(service);
         }
 
         @Override
@@ -583,6 +634,7 @@
                 Log.d(TAG, "ScoringServiceConnection, disconnected: " + name.flattenToString());
             }
             mConnected = false;
+            mRecommendationProvider = null;
         }
 
         public void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
@@ -590,4 +642,43 @@
                     + ", connected: " + mConnected);
         }
     }
+
+    /**
+     * Executes the async requestRecommendation() call with a timeout.
+     */
+    private static final class RequestRecommendationCaller
+            extends TimedRemoteCaller<RecommendationResult> {
+        private final IRemoteCallback mCallback;
+
+        RequestRecommendationCaller(long callTimeoutMillis) {
+            super(callTimeoutMillis);
+            mCallback = new IRemoteCallback.Stub() {
+                @Override
+                public void sendResult(Bundle data) throws RemoteException {
+                    final RecommendationResult result =
+                            data.getParcelable(EXTRA_RECOMMENDATION_RESULT);
+                    final int sequence = data.getInt(EXTRA_SEQUENCE, -1);
+                    onRemoteMethodResult(result, sequence);
+                }
+            };
+        }
+
+        /**
+         * Runs the requestRecommendation() call on the given {@link INetworkRecommendationProvider}
+         * instance.
+         *
+         * @param target the {@link INetworkRecommendationProvider} to request a recommendation
+         *               from
+         * @param request the {@link RecommendationRequest} from the calling client
+         * @return a {@link RecommendationResult} from the provider
+         * @throws RemoteException if the call failed
+         * @throws TimeoutException if the call took longer than the set timeout
+         */
+        RecommendationResult getRecommendationResult(INetworkRecommendationProvider target,
+                RecommendationRequest request) throws RemoteException, TimeoutException {
+            final int sequence = onBeforeRemoteCall();
+            target.requestRecommendation(request, mCallback, sequence);
+            return getResultTimed(sequence);
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 9b67bd2..eae4905 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -369,6 +369,7 @@
 import static com.android.server.am.ActivityStackSupervisor.FORCE_FOCUS;
 import static com.android.server.am.ActivityStackSupervisor.ON_TOP;
 import static com.android.server.am.ActivityStackSupervisor.PRESERVE_WINDOWS;
+import static com.android.server.am.ActivityStackSupervisor.REMOVE_FROM_RECENTS;
 import static com.android.server.am.ActivityStackSupervisor.RESTORE_FROM_RECENTS;
 import static com.android.server.am.TaskRecord.INVALID_TASK_ID;
 import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK;
@@ -539,8 +540,6 @@
     private static final String INTENT_REMOTE_BUGREPORT_FINISHED =
             "android.intent.action.REMOTE_BUGREPORT_FINISHED";
 
-    // Used to indicate that a task is removed it should also be removed from recents.
-    private static final boolean REMOVE_FROM_RECENTS = true;
     // Used to indicate that an app transition should be animated.
     static final boolean ANIMATE = true;
 
@@ -4826,7 +4825,7 @@
                     // because we don't support returning them across task boundaries. Also, to
                     // keep backwards compatibility we remove the task from recents when finishing
                     // task with root activity.
-                    res = removeTaskByIdLocked(tr.taskId, false, finishWithRootActivity);
+                    res = mStackSupervisor.removeTaskByIdLocked(tr.taskId, false, finishWithRootActivity);
                     if (!res) {
                         Slog.i(TAG, "Removing task failed to finish activity");
                     }
@@ -5471,7 +5470,7 @@
                             tr.getBaseIntent().getComponent().getPackageName();
                     if (tr.userId != userId) continue;
                     if (!taskPackageName.equals(packageName)) continue;
-                    removeTaskByIdLocked(tr.taskId, false, REMOVE_FROM_RECENTS);
+                    mStackSupervisor.removeTaskByIdLocked(tr.taskId, false, REMOVE_FROM_RECENTS);
                 }
             }
 
@@ -9585,79 +9584,6 @@
         mWindowManager.executeAppTransition();
     }
 
-    private void cleanUpRemovedTaskLocked(TaskRecord tr, boolean killProcess,
-            boolean removeFromRecents) {
-        if (removeFromRecents) {
-            mRecentTasks.remove(tr);
-            tr.removedFromRecents();
-        }
-        ComponentName component = tr.getBaseIntent().getComponent();
-        if (component == null) {
-            Slog.w(TAG, "No component for base intent of task: " + tr);
-            return;
-        }
-
-        // Find any running services associated with this app and stop if needed.
-        mServices.cleanUpRemovedTaskLocked(tr, component, new Intent(tr.getBaseIntent()));
-
-        if (!killProcess) {
-            return;
-        }
-
-        // Determine if the process(es) for this task should be killed.
-        final String pkg = component.getPackageName();
-        ArrayList<ProcessRecord> procsToKill = new ArrayList<>();
-        ArrayMap<String, SparseArray<ProcessRecord>> pmap = mProcessNames.getMap();
-        for (int i = 0; i < pmap.size(); i++) {
-
-            SparseArray<ProcessRecord> uids = pmap.valueAt(i);
-            for (int j = 0; j < uids.size(); j++) {
-                ProcessRecord proc = uids.valueAt(j);
-                if (proc.userId != tr.userId) {
-                    // Don't kill process for a different user.
-                    continue;
-                }
-                if (proc == mHomeProcess) {
-                    // Don't kill the home process along with tasks from the same package.
-                    continue;
-                }
-                if (!proc.pkgList.containsKey(pkg)) {
-                    // Don't kill process that is not associated with this task.
-                    continue;
-                }
-
-                for (int k = 0; k < proc.activities.size(); k++) {
-                    TaskRecord otherTask = proc.activities.get(k).task;
-                    if (tr.taskId != otherTask.taskId && otherTask.inRecents) {
-                        // Don't kill process(es) that has an activity in a different task that is
-                        // also in recents.
-                        return;
-                    }
-                }
-
-                if (proc.foregroundServices) {
-                    // Don't kill process(es) with foreground service.
-                    return;
-                }
-
-                // Add process to kill list.
-                procsToKill.add(proc);
-            }
-        }
-
-        // Kill the running processes.
-        for (int i = 0; i < procsToKill.size(); i++) {
-            ProcessRecord pr = procsToKill.get(i);
-            if (pr.setSchedGroup == ProcessList.SCHED_GROUP_BACKGROUND
-                    && pr.curReceivers.isEmpty()) {
-                pr.kill("remove task", true);
-            } else {
-                // We delay killing processes that are not in the background or running a receiver.
-                pr.waitingToKill = "remove task";
-            }
-        }
-    }
-
     private void removeTasksByPackageNameLocked(String packageName, int userId) {
         // Remove all tasks with activities in the specified package from the list of recent tasks
         for (int i = mRecentTasks.size() - 1; i >= 0; i--) {
@@ -9667,7 +9593,7 @@
             ComponentName cn = tr.intent.getComponent();
             if (cn != null && cn.getPackageName().equals(packageName)) {
                 // If the package name matches, remove the task.
-                removeTaskByIdLocked(tr.taskId, true, REMOVE_FROM_RECENTS);
+                mStackSupervisor.removeTaskByIdLocked(tr.taskId, true, REMOVE_FROM_RECENTS);
             }
         }
     }
@@ -9685,35 +9611,11 @@
             final boolean sameComponent = cn != null && cn.getPackageName().equals(packageName)
                     && (filterByClasses == null || filterByClasses.contains(cn.getClassName()));
             if (sameComponent) {
-                removeTaskByIdLocked(tr.taskId, false, REMOVE_FROM_RECENTS);
+                mStackSupervisor.removeTaskByIdLocked(tr.taskId, false, REMOVE_FROM_RECENTS);
             }
         }
     }
 
-    /**
-     * Removes the task with the specified task id.
-     *
-     * @param taskId Identifier of the task to be removed.
-     * @param killProcess Kill any process associated with the task if possible.
-     * @param removeFromRecents Whether to also remove the task from recents.
-     * @return Returns true if the given task was found and removed.
-     */
-    private boolean removeTaskByIdLocked(int taskId, boolean killProcess,
-            boolean removeFromRecents) {
-        final TaskRecord tr = mStackSupervisor.anyTaskForIdLocked(
-                taskId, !RESTORE_FROM_RECENTS, INVALID_STACK_ID);
-        if (tr != null) {
-            tr.removeTaskActivitiesLocked();
-            cleanUpRemovedTaskLocked(tr, killProcess, removeFromRecents);
-            if (tr.isPersistable) {
-                notifyTaskPersisterLocked(null, true);
-            }
-            return true;
-        }
-        Slog.w(TAG, "Request to remove task ignored for non-existent task " + taskId);
-        return false;
-    }
-
     @Override
     public void removeStack(int stackId) {
         enforceCallingPermission(Manifest.permission.MANAGE_ACTIVITY_STACKS, "removeStack()");
@@ -9724,15 +9626,7 @@
         synchronized (this) {
             final long ident = Binder.clearCallingIdentity();
             try {
-                final ActivityStack stack = mStackSupervisor.getStack(stackId);
-                if (stack == null) {
-                    return;
-                }
-                final ArrayList<TaskRecord> tasks = stack.getAllTasks();
-                for (int i = tasks.size() - 1; i >= 0; i--) {
-                    removeTaskByIdLocked(
-                            tasks.get(i).taskId, true /* killProcess */, REMOVE_FROM_RECENTS);
-                }
+                mStackSupervisor.removeStackLocked(stackId);
             } finally {
                 Binder.restoreCallingIdentity(ident);
             }
@@ -9761,7 +9655,7 @@
         synchronized (this) {
             final long ident = Binder.clearCallingIdentity();
             try {
-                return removeTaskByIdLocked(taskId, true, REMOVE_FROM_RECENTS);
+                return mStackSupervisor.removeTaskByIdLocked(taskId, true, REMOVE_FROM_RECENTS);
             } finally {
                 Binder.restoreCallingIdentity(ident);
             }
@@ -22520,7 +22414,8 @@
                 long origId = Binder.clearCallingIdentity();
                 try {
                     // We remove the task from recents to preserve backwards
-                    if (!removeTaskByIdLocked(mTaskId, false, REMOVE_FROM_RECENTS)) {
+                    if (!mStackSupervisor.removeTaskByIdLocked(mTaskId, false,
+                            REMOVE_FROM_RECENTS)) {
                         throw new IllegalArgumentException("Unable to find task ID " + mTaskId);
                     }
                 } finally {
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index fe261f1..b4b3465 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -249,6 +249,9 @@
     // Don't execute any calls to resume.
     static final boolean DEFER_RESUME = true;
 
+    // Used to indicate that a task is removed it should also be removed from recents.
+    static final boolean REMOVE_FROM_RECENTS = true;
+
     // Activity actions an app cannot start if it uses a permission which is not granted.
     private static final ArrayMap<String, String> ACTION_TO_RUNTIME_PERMISSION =
             new ArrayMap<>();
@@ -2183,7 +2186,8 @@
                         // Update the return-to to reflect where the pinned stack task was moved
                         // from so that we retain the stack that was previously visible if the
                         // pinned stack is recreated. See moveActivityToPinnedStackLocked().
-                        task.setTaskToReturnTo(getFocusedStack().getStackId() == HOME_STACK_ID
+                        final int focusedStackId = getFocusedStack().getStackId();
+                        task.setTaskToReturnTo(focusedStackId == HOME_STACK_ID || !onTop
                                 ? HOME_ACTIVITY_TYPE : APPLICATION_ACTIVITY_TYPE);
                     }
                     moveTaskToStackLocked(tasks.get(i).taskId,
@@ -2374,6 +2378,141 @@
         return activityContainer.mStack;
     }
 
+    /**
+     * Removes the stack associed with the given {@param stackId}.  If the {@param stackId} is the
+     * pinned stack, then its tasks are not explicitly removed when the stack is destroyed, but
+     * instead moved back onto the fullscreen stack.
+     */
+    void removeStackLocked(int stackId) {
+        final ActivityStack stack = getStack(stackId);
+        if (stack == null) {
+            return;
+        }
+
+        final ArrayList<TaskRecord> tasks = stack.getAllTasks();
+        if (stack.getStackId() == PINNED_STACK_ID) {
+            final ActivityStack fullscreenStack = getStack(FULLSCREEN_WORKSPACE_STACK_ID);
+            if (fullscreenStack != null) {
+                final boolean isFullscreenStackVisible =
+                        fullscreenStack.getStackVisibilityLocked(null) == STACK_VISIBLE;
+                for (int i = 0; i < tasks.size(); i++) {
+                    // Insert the task either at the top of the fullscreen stack if it is hidden,
+                    // or just under the top task if it is currently visible
+                    final int insertPosition = isFullscreenStackVisible
+                            ? Math.max(0, fullscreenStack.getChildCount() - 1)
+                            : fullscreenStack.getChildCount();
+                    positionTaskInStackLocked(tasks.get(i).taskId, FULLSCREEN_WORKSPACE_STACK_ID,
+                            insertPosition);
+                }
+                ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
+                resumeFocusedStackTopActivityLocked();
+            } else {
+                // If there is no fullscreen stack, then create the stack and move all the tasks
+                // onto the stack
+                moveTasksToFullscreenStackLocked(PINNED_STACK_ID, false /* onTop */);
+            }
+        } else {
+            for (int i = tasks.size() - 1; i >= 0; i--) {
+                removeTaskByIdLocked(tasks.get(i).taskId, true /* killProcess */,
+                        REMOVE_FROM_RECENTS);
+            }
+        }
+    }
+
+    /**
+     * Removes the task with the specified task id.
+     *
+     * @param taskId Identifier of the task to be removed.
+     * @param killProcess Kill any process associated with the task if possible.
+     * @param removeFromRecents Whether to also remove the task from recents.
+     * @return Returns true if the given task was found and removed.
+     */
+    boolean removeTaskByIdLocked(int taskId, boolean killProcess, boolean removeFromRecents) {
+        final TaskRecord tr = anyTaskForIdLocked(taskId, !RESTORE_FROM_RECENTS, INVALID_STACK_ID);
+        if (tr != null) {
+            tr.removeTaskActivitiesLocked();
+            cleanUpRemovedTaskLocked(tr, killProcess, removeFromRecents);
+            if (tr.isPersistable) {
+                mService.notifyTaskPersisterLocked(null, true);
+            }
+            return true;
+        }
+        Slog.w(TAG, "Request to remove task ignored for non-existent task " + taskId);
+        return false;
+    }
+
+    void cleanUpRemovedTaskLocked(TaskRecord tr, boolean killProcess, boolean removeFromRecents) {
+        if (removeFromRecents) {
+            mRecentTasks.remove(tr);
+            tr.removedFromRecents();
+        }
+        ComponentName component = tr.getBaseIntent().getComponent();
+        if (component == null) {
+            Slog.w(TAG, "No component for base intent of task: " + tr);
+            return;
+        }
+
+        // Find any running services associated with this app and stop if needed.
+        mService.mServices.cleanUpRemovedTaskLocked(tr, component, new Intent(tr.getBaseIntent()));
+
+        if (!killProcess) {
+            return;
+        }
+
+        // Determine if the process(es) for this task should be killed.
+        final String pkg = component.getPackageName();
+        ArrayList<ProcessRecord> procsToKill = new ArrayList<>();
+        ArrayMap<String, SparseArray<ProcessRecord>> pmap = mService.mProcessNames.getMap();
+        for (int i = 0; i < pmap.size(); i++) {
+
+            SparseArray<ProcessRecord> uids = pmap.valueAt(i);
+            for (int j = 0; j < uids.size(); j++) {
+                ProcessRecord proc = uids.valueAt(j);
+                if (proc.userId != tr.userId) {
+                    // Don't kill process for a different user.
+                    continue;
+                }
+                if (proc == mService.mHomeProcess) {
+                    // Don't kill the home process along with tasks from the same package.
+                    continue;
+                }
+                if (!proc.pkgList.containsKey(pkg)) {
+                    // Don't kill process that is not associated with this task.
+                    continue;
+                }
+
+                for (int k = 0; k < proc.activities.size(); k++) {
+                    TaskRecord otherTask = proc.activities.get(k).task;
+                    if (tr.taskId != otherTask.taskId && otherTask.inRecents) {
+                        // Don't kill process(es) that has an activity in a different task that is
+                        // also in recents.
+                        return;
+                    }
+                }
+
+                if (proc.foregroundServices) {
+                    // Don't kill process(es) with foreground service.
+                    return;
+                }
+
+                // Add process to kill list.
+                procsToKill.add(proc);
+            }
+        }
+
+        // Kill the running processes.
+        for (int i = 0; i < procsToKill.size(); i++) {
+            ProcessRecord pr = procsToKill.get(i);
+            if (pr.setSchedGroup == ProcessList.SCHED_GROUP_BACKGROUND
+                    && pr.curReceivers.isEmpty()) {
+                pr.kill("remove task", true);
+            } else {
+                // We delay killing processes that are not in the background or running a receiver.
+                pr.waitingToKill = "remove task";
+            }
+        }
+    }
+
     int getNextStackId() {
         while (true) {
             if (mNextFreeStackId >= FIRST_DYNAMIC_STACK_ID
diff --git a/services/tests/servicestests/src/com/android/server/NetworkScoreServiceTest.java b/services/tests/servicestests/src/com/android/server/NetworkScoreServiceTest.java
index 50911cb..c653b8e 100644
--- a/services/tests/servicestests/src/com/android/server/NetworkScoreServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/NetworkScoreServiceTest.java
@@ -16,10 +16,13 @@
 
 package com.android.server;
 
+import static android.net.NetworkRecommendationProvider.EXTRA_RECOMMENDATION_RESULT;
+import static android.net.NetworkRecommendationProvider.EXTRA_SEQUENCE;
 import static android.net.NetworkScoreManager.CACHE_FILTER_NONE;
 
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertNotNull;
 import static junit.framework.Assert.assertTrue;
 import static junit.framework.Assert.fail;
 
@@ -28,12 +31,15 @@
 import static org.mockito.Matchers.anyListOf;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Matchers.eq;
+import static org.mockito.Matchers.isA;
 import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.verifyZeroInteractions;
 import static org.mockito.Mockito.when;
 
 import android.Manifest.permission;
@@ -44,37 +50,42 @@
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
+import android.net.INetworkRecommendationProvider;
 import android.net.INetworkScoreCache;
 import android.net.NetworkKey;
-import android.net.NetworkScoreManager;
 import android.net.NetworkScorerAppManager;
 import android.net.NetworkScorerAppManager.NetworkScorerAppData;
+import android.net.RecommendationRequest;
+import android.net.RecommendationResult;
 import android.net.ScoredNetwork;
 import android.net.WifiKey;
+import android.net.wifi.WifiConfiguration;
+import android.os.Bundle;
 import android.os.IBinder;
+import android.os.IRemoteCallback;
+import android.os.Looper;
 import android.os.RemoteException;
 import android.os.UserHandle;
-import android.provider.Settings;
-import android.provider.Settings.Global;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.MediumTest;
 import android.support.test.runner.AndroidJUnit4;
 
-import com.android.internal.R;
 import com.android.server.devicepolicy.MockUtils;
 
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.util.List;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
 import org.mockito.Mock;
-import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.List;
 
 /**
  * Tests for {@link NetworkScoreService}.
@@ -85,12 +96,8 @@
     private static final ScoredNetwork SCORED_NETWORK =
             new ScoredNetwork(new NetworkKey(new WifiKey("\"ssid\"", "00:00:00:00:00:00")),
                     null /* rssiCurve*/);
-    private static final NetworkScorerAppData PREV_SCORER = new NetworkScorerAppData(
-            "prevPackageName", 0, "prevScorerName", null /* configurationActivityClassName */,
-            "prevScoringServiceClass");
-    private static final NetworkScorerAppData NEW_SCORER = new NetworkScorerAppData(
-            "newPackageName", 1, "newScorerName", null /* configurationActivityClassName */,
-            "newScoringServiceClass");
+    private static final NetworkScorerAppData NEW_SCORER =
+        new NetworkScorerAppData("newPackageName", 1, "newScoringServiceClass");
 
     @Mock private PackageManager mPackageManager;
     @Mock private NetworkScorerAppManager mNetworkScorerAppManager;
@@ -98,10 +105,12 @@
     @Mock private Resources mResources;
     @Mock private INetworkScoreCache.Stub mNetworkScoreCache, mNetworkScoreCache2;
     @Mock private IBinder mIBinder, mIBinder2;
+    @Mock private INetworkRecommendationProvider mRecommendationProvider;
     @Captor private ArgumentCaptor<List<ScoredNetwork>> mScoredNetworkCaptor;
 
     private ContentResolver mContentResolver;
     private NetworkScoreService mNetworkScoreService;
+    private RecommendationRequest mRecommendationRequest;
 
     @Before
     public void setUp() throws Exception {
@@ -112,44 +121,9 @@
         when(mContext.getContentResolver()).thenReturn(mContentResolver);
         when(mContext.getResources()).thenReturn(mResources);
         mNetworkScoreService = new NetworkScoreService(mContext, mNetworkScorerAppManager);
-    }
-
-    @Test
-    public void testSystemReady_networkScorerProvisioned() throws Exception {
-        Settings.Global.putInt(mContentResolver, Global.NETWORK_SCORING_PROVISIONED, 1);
-
-        mNetworkScoreService.systemReady();
-
-        verify(mNetworkScorerAppManager, never()).setActiveScorer(anyString());
-    }
-
-    @Test
-    public void testSystemReady_networkScorerNotProvisioned_defaultScorer() throws Exception {
-        Settings.Global.putInt(mContentResolver, Global.NETWORK_SCORING_PROVISIONED, 0);
-
-        when(mResources.getString(R.string.config_defaultNetworkScorerPackageName))
-                .thenReturn(NEW_SCORER.mPackageName);
-
-        mNetworkScoreService.systemReady();
-
-        verify(mNetworkScorerAppManager).setActiveScorer(NEW_SCORER.mPackageName);
-        assertEquals(1,
-                Settings.Global.getInt(mContentResolver, Global.NETWORK_SCORING_PROVISIONED));
-
-    }
-
-    @Test
-    public void testSystemReady_networkScorerNotProvisioned_noDefaultScorer() throws Exception {
-        Settings.Global.putInt(mContentResolver, Global.NETWORK_SCORING_PROVISIONED, 0);
-
-        when(mResources.getString(R.string.config_defaultNetworkScorerPackageName))
-                .thenReturn(null);
-
-        mNetworkScoreService.systemReady();
-
-        verify(mNetworkScorerAppManager, never()).setActiveScorer(anyString());
-        assertEquals(1,
-                Settings.Global.getInt(mContentResolver, Global.NETWORK_SCORING_PROVISIONED));
+        WifiConfiguration configuration = new WifiConfiguration();
+        mRecommendationRequest = new RecommendationRequest.Builder()
+            .setCurrentRecommendedWifiConfig(configuration).build();
     }
 
     @Test
@@ -159,13 +133,126 @@
         mNetworkScoreService.systemRunning();
 
         verify(mContext).bindServiceAsUser(MockUtils.checkIntent(new Intent().setComponent(
-                new ComponentName(NEW_SCORER.mPackageName, NEW_SCORER.mScoringServiceClassName))),
+                new ComponentName(NEW_SCORER.packageName,
+                    NEW_SCORER.recommendationServiceClassName))),
                 any(ServiceConnection.class),
                 eq(Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE),
                 eq(UserHandle.SYSTEM));
     }
 
     @Test
+    public void testRequestScores_noPermission() throws Exception {
+        doThrow(new SecurityException()).when(mContext)
+            .enforceCallingOrSelfPermission(eq(permission.BROADCAST_NETWORK_PRIVILEGED),
+                anyString());
+        try {
+            mNetworkScoreService.requestScores(null);
+            fail("BROADCAST_NETWORK_PRIVILEGED not enforced.");
+        } catch (SecurityException e) {
+            // expected
+        }
+    }
+
+    @Test
+    public void testRequestScores_providerNotConnected() throws Exception {
+        assertFalse(mNetworkScoreService.requestScores(new NetworkKey[0]));
+        verifyZeroInteractions(mRecommendationProvider);
+    }
+
+    @Test
+    public void testRequestScores_providerThrowsRemoteException() throws Exception {
+        injectProvider();
+        doThrow(new RemoteException()).when(mRecommendationProvider)
+            .requestScores(any(NetworkKey[].class));
+
+        assertFalse(mNetworkScoreService.requestScores(new NetworkKey[0]));
+    }
+
+    @Test
+    public void testRequestScores_providerAvailable() throws Exception {
+        injectProvider();
+
+        final NetworkKey[] networks = new NetworkKey[0];
+        assertTrue(mNetworkScoreService.requestScores(networks));
+        verify(mRecommendationProvider).requestScores(networks);
+    }
+
+    @Test
+    public void testRequestRecommendation_noPermission() throws Exception {
+        doThrow(new SecurityException()).when(mContext)
+            .enforceCallingOrSelfPermission(eq(permission.BROADCAST_NETWORK_PRIVILEGED),
+                anyString());
+        try {
+            mNetworkScoreService.requestRecommendation(mRecommendationRequest);
+            fail("BROADCAST_NETWORK_PRIVILEGED not enforced.");
+        } catch (SecurityException e) {
+            // expected
+        }
+    }
+
+    @Test
+    public void testRequestRecommendation_mainThread() throws Exception {
+        when(mContext.getMainLooper()).thenReturn(Looper.myLooper());
+        try {
+            mNetworkScoreService.requestRecommendation(mRecommendationRequest);
+            fail("requestRecommendation run on main thread.");
+        } catch (RuntimeException e) {
+            // expected
+        }
+    }
+
+    @Test
+    public void testRequestRecommendation_providerNotConnected() throws Exception {
+        when(mContext.getMainLooper()).thenReturn(Looper.getMainLooper());
+
+        final RecommendationResult result =
+                mNetworkScoreService.requestRecommendation(mRecommendationRequest);
+        assertNotNull(result);
+        assertEquals(mRecommendationRequest.getCurrentSelectedConfig(),
+                result.getWifiConfiguration());
+    }
+
+    @Test
+    public void testRequestRecommendation_providerThrowsRemoteException() throws Exception {
+        injectProvider();
+        when(mContext.getMainLooper()).thenReturn(Looper.getMainLooper());
+        doThrow(new RemoteException()).when(mRecommendationProvider)
+                .requestRecommendation(eq(mRecommendationRequest), isA(IRemoteCallback.class),
+                        anyInt());
+
+        final RecommendationResult result =
+                mNetworkScoreService.requestRecommendation(mRecommendationRequest);
+        assertNotNull(result);
+        assertEquals(mRecommendationRequest.getCurrentSelectedConfig(),
+                result.getWifiConfiguration());
+    }
+
+    @Test
+    public void testRequestRecommendation_resultReturned() throws Exception {
+        injectProvider();
+        when(mContext.getMainLooper()).thenReturn(Looper.getMainLooper());
+        final WifiConfiguration wifiConfiguration = new WifiConfiguration();
+        wifiConfiguration.SSID = "testRequestRecommendation_resultReturned";
+        final RecommendationResult providerResult =
+                new RecommendationResult(wifiConfiguration);
+        final Bundle bundle = new Bundle();
+        bundle.putParcelable(EXTRA_RECOMMENDATION_RESULT, providerResult);
+        doAnswer(invocation -> {
+            bundle.putInt(EXTRA_SEQUENCE, invocation.getArgumentAt(2, int.class));
+            invocation.getArgumentAt(1, IRemoteCallback.class).sendResult(bundle);
+            return null;
+        }).when(mRecommendationProvider)
+                .requestRecommendation(eq(mRecommendationRequest), isA(IRemoteCallback.class),
+                        anyInt());
+
+        final RecommendationResult result =
+                mNetworkScoreService.requestRecommendation(mRecommendationRequest);
+        assertNotNull(result);
+        assertEquals(providerResult.getWifiConfiguration().SSID,
+                result.getWifiConfiguration().SSID);
+    }
+
+    @Test
     public void testUpdateScores_notActiveScorer() {
         when(mNetworkScorerAppManager.isCallerActiveScorer(anyInt())).thenReturn(false);
 
@@ -288,45 +375,6 @@
     }
 
     @Test
-    public void testSetActiveScorer_failure() throws RemoteException {
-        when(mNetworkScorerAppManager.getActiveScorer()).thenReturn(PREV_SCORER);
-        when(mNetworkScorerAppManager.setActiveScorer(NEW_SCORER.mPackageName)).thenReturn(false);
-        mNetworkScoreService.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache,
-                CACHE_FILTER_NONE);
-
-        boolean success = mNetworkScoreService.setActiveScorer(NEW_SCORER.mPackageName);
-
-        assertFalse(success);
-        verify(mNetworkScoreCache).clearScores();
-        verify(mContext).bindServiceAsUser(MockUtils.checkIntent(new Intent().setComponent(
-                new ComponentName(PREV_SCORER.mPackageName, PREV_SCORER.mScoringServiceClassName))),
-                any(ServiceConnection.class),
-                eq(Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE),
-                eq(UserHandle.SYSTEM));
-    }
-
-    @Test
-    public void testSetActiveScorer_success() throws RemoteException {
-        when(mNetworkScorerAppManager.getActiveScorer()).thenReturn(PREV_SCORER, NEW_SCORER);
-        when(mNetworkScorerAppManager.setActiveScorer(NEW_SCORER.mPackageName)).thenReturn(true);
-        mNetworkScoreService.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache,
-                CACHE_FILTER_NONE);
-
-        boolean success = mNetworkScoreService.setActiveScorer(NEW_SCORER.mPackageName);
-
-        assertTrue(success);
-        verify(mNetworkScoreCache).clearScores();
-        verify(mContext).bindServiceAsUser(MockUtils.checkIntent(new Intent().setComponent(
-                new ComponentName(NEW_SCORER.mPackageName, NEW_SCORER.mScoringServiceClassName))),
-                any(ServiceConnection.class),
-                eq(Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE),
-                eq(UserHandle.SYSTEM));
-        verify(mContext, times(2)).sendBroadcastAsUser(
-                MockUtils.checkIntentAction(NetworkScoreManager.ACTION_SCORER_CHANGED),
-                eq(UserHandle.SYSTEM));
-    }
-
-    @Test
     public void testDisableScoring_notActiveScorer_noBroadcastNetworkPermission() {
         when(mNetworkScorerAppManager.isCallerActiveScorer(anyInt())).thenReturn(false);
         when(mContext.checkCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED))
@@ -338,48 +386,6 @@
         } catch (SecurityException e) {
             // expected
         }
-
-    }
-
-    @Test
-    public void testDisableScoring_activeScorer() throws RemoteException {
-        when(mNetworkScorerAppManager.isCallerActiveScorer(anyInt())).thenReturn(true);
-        when(mNetworkScorerAppManager.getActiveScorer()).thenReturn(PREV_SCORER, null);
-        when(mNetworkScorerAppManager.setActiveScorer(null)).thenReturn(true);
-        mNetworkScoreService.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache,
-                CACHE_FILTER_NONE);
-
-        mNetworkScoreService.disableScoring();
-
-        verify(mNetworkScoreCache).clearScores();
-        verify(mContext).sendBroadcastAsUser(
-                MockUtils.checkIntent(new Intent(NetworkScoreManager.ACTION_SCORER_CHANGED)
-                        .setPackage(PREV_SCORER.mPackageName)),
-                eq(UserHandle.SYSTEM));
-        verify(mContext, never()).bindServiceAsUser(any(Intent.class),
-                any(ServiceConnection.class), anyInt(), any(UserHandle.class));
-    }
-
-    @Test
-    public void testDisableScoring_notActiveScorer_hasBroadcastNetworkPermission()
-            throws RemoteException {
-        when(mNetworkScorerAppManager.isCallerActiveScorer(anyInt())).thenReturn(false);
-        when(mContext.checkCallingOrSelfPermission(permission.BROADCAST_NETWORK_PRIVILEGED))
-                .thenReturn(PackageManager.PERMISSION_GRANTED);
-        when(mNetworkScorerAppManager.getActiveScorer()).thenReturn(PREV_SCORER, null);
-        when(mNetworkScorerAppManager.setActiveScorer(null)).thenReturn(true);
-        mNetworkScoreService.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache,
-                CACHE_FILTER_NONE);
-
-        mNetworkScoreService.disableScoring();
-
-        verify(mNetworkScoreCache).clearScores();
-        verify(mContext).sendBroadcastAsUser(
-                MockUtils.checkIntent(new Intent(NetworkScoreManager.ACTION_SCORER_CHANGED)
-                        .setPackage(PREV_SCORER.mPackageName)),
-                eq(UserHandle.SYSTEM));
-        verify(mContext, never()).bindServiceAsUser(any(Intent.class),
-                any(ServiceConnection.class), anyInt(), any(UserHandle.class));
     }
 
     @Test
@@ -434,4 +440,24 @@
 
         assertFalse(stringWriter.toString().isEmpty());
     }
+
+    // "injects" the mock INetworkRecommendationProvider into the NetworkScoreService.
+    private void injectProvider() {
+        final ComponentName componentName = new ComponentName(NEW_SCORER.packageName,
+                NEW_SCORER.recommendationServiceClassName);
+        when(mNetworkScorerAppManager.getActiveScorer()).thenReturn(NEW_SCORER);
+        when(mContext.bindServiceAsUser(isA(Intent.class), isA(ServiceConnection.class), anyInt(),
+                isA(UserHandle.class))).thenAnswer(new Answer<Boolean>() {
+            @Override
+            public Boolean answer(InvocationOnMock invocation) throws Throwable {
+                IBinder mockBinder = mock(IBinder.class);
+                when(mockBinder.queryLocalInterface(anyString()))
+                        .thenReturn(mRecommendationProvider);
+                invocation.getArgumentAt(1, ServiceConnection.class)
+                        .onServiceConnected(componentName, mockBinder);
+                return true;
+            }
+        });
+        mNetworkScoreService.systemRunning();
+    }
 }