Moving Plugin and feature flags UI to androidX

> Combining both preference into a single screen
> Adding plugin preference screen so quickstep build

Change-Id: I3d2ff3ebdac3c774659e79ecb81be6f75f765eb0
diff --git a/res/values/config.xml b/res/values/config.xml
index 946afec..5e83ab7 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -19,7 +19,7 @@
     <string name="delete_package_intent" translatable="false">#Intent;action=android.intent.action.DELETE;launchFlags=0x10800000;end</string>
 
     <!-- String representing the fragment class for settings activity.-->
-    <string name="settings_fragment_name" translatable="false">com.android.launcher3.SettingsActivity$LauncherSettingsFragment</string>
+    <string name="settings_fragment_name" translatable="false">com.android.launcher3.settings.SettingsActivity$LauncherSettingsFragment</string>
 
     <!-- Values for icon shape overrides. These should correspond to entries defined
      in icon_shape_override_paths_names -->
@@ -105,7 +105,10 @@
     <item type="id" name="view_unhighlight_background" />
     <item type="id" name="view_highlighted" />
 
-<!-- Popup items -->
+    <!-- Menu id for feature flags -->
+    <item type="id" name="menu_apply_flags" />
+
+    <!-- Popup items -->
     <integer name="config_popupOpenCloseDuration">150</integer>
     <integer name="config_popupArrowOpenCloseDuration">40</integer>
     <integer name="config_removeNotificationViewDuration">300</integer>
diff --git a/res/xml/flag_preferences.xml b/res/xml/flag_preferences.xml
deleted file mode 100644
index aea1a6a..0000000
--- a/res/xml/flag_preferences.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
--->
-
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-    android:key="feature_flags"
-    android:persistent="false">
-
-</PreferenceScreen>
\ No newline at end of file
diff --git a/res/xml/launcher_preferences.xml b/res/xml/launcher_preferences.xml
index c55cc49..2c86f8e 100644
--- a/res/xml/launcher_preferences.xml
+++ b/res/xml/launcher_preferences.xml
@@ -54,9 +54,9 @@
         android:persistent="false" />
 
     <androidx.preference.PreferenceScreen
-        android:fragment="com.android.launcher3.config.FlagTogglerPreferenceFragment"
-        android:key="flag_toggler"
+        android:key="pref_developer_options"
         android:persistent="false"
-        android:title="Feature flags"/>
+        android:title="Developer Options"
+        android:fragment="com.android.launcher3.settings.DeveloperOptionsFragment"/>
 
 </androidx.preference.PreferenceScreen>