Move assist gestures settings to overlay

Bug: 37427306

Test: make -j RunSettingsRoboTests && manual testing of settings
Change-Id: If2b0ec9a966334a91f090051dee661011bfc0d70

src/com/android/settings/gestures/AssistGestureSettings.java

@@ -23,6 +23,7 @@ import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
 import com.android.settings.core.PreferenceController;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.lifecycle.Lifecycle;
 
@@ -48,7 +49,8 @@ public class AssistGestureSettings extends DashboardFragment {
 
     @Override
     protected int getPreferenceScreenResId() {
-        return R.xml.assist_gesture_settings;
+        return FeatureFactory.getFactory(getContext())
+                .getAssistGestureFeatureProvider().getPreferenceResourceId();
     }
 
     @Override
@@ -60,7 +62,9 @@ public class AssistGestureSettings extends DashboardFragment {
             Lifecycle lifecycle) {
         final List<PreferenceController> controllers = new ArrayList<>();
         controllers.add(new AssistGesturePreferenceController(context, lifecycle, KEY_ASSIST));
-        controllers.add(new AssistGestureSensitivityPreferenceController(context, lifecycle));
+        controllers.addAll(FeatureFactory.getFactory(context).getAssistGestureFeatureProvider()
+                .getControllers(context, lifecycle));
+
         return controllers;
     }