Adding Wifi setting to special_access settings

In the settings app, allow users to override app permission for
CHANGE_WIFI_STATE for every application that declared that permission.

Bug: 70562620
Test: compile, robotests

Manual test:
Flash build to device (walleye)
Download iPass from playstore
Open iPass and try connect to a wifi network; verify success
Open settings -> Apps & notifications -> Advanced -> Special app access
-> Wifi access
Select iPass from the list
Toggle the switch to off
Open iPass and try connect to a wifi network; verify failure

Change-Id: Ib2be4c83988a81ba7831d096c9b1980462e66903

res/values/strings.xml

@@ -9359,4 +9359,18 @@
 
     <!-- Title for item to go to old battery settings page when clicking [CHAR LIMIT=100] -->
     <string name="dev_android_o_battery_settings_title">See Android 8.0 battery settings</string>
+    <!-- Title for Wifi Access settings [CHAR LIMIT=35] -->
+    <string name="change_wifi_state_title">Toggle wifi on and off</string>
+    <!-- Keywords for Wifi Access settings [CHAR LIMIT=35] -->
+    <string name="keywords_change_wifi_state">toggle wifi on and off</string>
+
+    <!-- Apps > App Details > Advanced section string title. [CHAR LIMIT=35] -->
+    <string name="change_wifi_state_app_detail_title">Toggle wifi on and off</string>
+
+    <!-- Apps > App Details > Wifi access > Switch title. [CHAR LIMIT=NONE] -->
+    <string name="change_wifi_state_app_detail_switch">Allow toggle wifi</string>
+
+    <!-- Apps > App Details > Wifi access > Description. [CHAR LIMIT=NONE] -->
+    <string name="change_wifi_state_app_detail_summary">Allow this app to change wifi state including connecting to wifi and turing wifi on and off.</string>
+
 </resources>

res/xml/change_wifi_state_details.xml

@@ -0,0 +1,30 @@
+<?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="change_wifi_state"
+    android:title="@string/change_wifi_state_app_detail_title">
+
+  <SwitchPreference
+      android:key="app_ops_settings_switch"
+      android:title="@string/change_wifi_state_app_detail_switch"/>
+
+  <Preference
+      android:key="app_ops_settings_preference"
+      android:summary="@string/change_wifi_state_app_detail_summary"
+      android:selectable="false"/>
+
+</PreferenceScreen>

res/xml/special_access.xml

@@ -121,4 +121,14 @@
             android:value="com.android.settings.Settings$DirectoryAccessSettingsActivity" />
     </Preference>
 
+    <Preference
+        android:key="change_wifi_state"
+        android:title="@string/change_wifi_state_title"
+        android:fragment="com.android.settings.applications.manageapplications.ManageApplications"
+        settings:keywords="@string/keywords_change_wifi_state">
+        <extra
+            android:name="classname"
+            android:value="com.android.settings.Settings$ChangeWifiStateActivity" />
+    </Preference>
+
 </PreferenceScreen>