add Contact Scopes link to the "App info" screen

res/values/strings_ext.xml

@@ -59,4 +59,6 @@ No query or data is sent to the server. These files contain orbits and statuses
     <string name="psds_disabled">Disabled</string>
     <string name="psds_disabled_summary">Will make acquiring location lock significantly slower, especially if SUPL is disabled too</string>
 
+    <string name="contact_scopes">Contact Scopes</string>
+
 </resources>

res/xml/app_info_settings.xml

@@ -64,6 +64,12 @@
         android:title="@string/storage_scopes"
         settings:controller="com.android.settings.applications.appinfo.AppStorageScopesPreferenceController" />
 
+    <Preference
+        android:key="contact_scopes"
+        android:title="@string/contact_scopes"
+        settings:controller="com.android.settings.applications.appinfo.AppContactScopesPreferenceController" />
+
+
     <Preference
         android:key="storage_settings"
         android:title="@string/storage_settings_for_app"

src/com/android/settings/applications/appinfo/AppContactScopesPreferenceController.java

@@ -0,0 +1,24 @@
+package com.android.settings.applications.appinfo;
+
+import android.content.Context;
+import android.content.pm.GosPackageState;
+import android.ext.cscopes.ContactScopesApi;
+
+import com.android.settings.ext.AppInfoPreferenceControllerBase2;
+
+public class AppContactScopesPreferenceController extends AppInfoPreferenceControllerBase2 {
+    public AppContactScopesPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return hasGosPackageStateFlags(GosPackageState.FLAG_CONTACT_SCOPES_ENABLED) ?
+                AVAILABLE : CONDITIONALLY_UNAVAILABLE;
+    }
+
+    @Override
+    public void onPreferenceClick(String packageName) {
+        mContext.startActivity(ContactScopesApi.createConfigActivityIntent(packageName));
+    }
+}

src/com/android/settings/applications/appinfo/AppInfoDashboardFragment.java

@@ -179,6 +179,7 @@ public void onAttach(Context context) {
         use(AppStoragePreferenceController.class).setParentFragment(this);
         use(AppVersionPreferenceController.class).setParentFragment(this);
         use(AppStorageScopesPreferenceController.class).setParentFragment(this);
+        use(AppContactScopesPreferenceController.class).setParentFragment(this);
         use(InstantAppDomainsPreferenceController.class).setParentFragment(this);
 
         final HibernationSwitchPreferenceController appHibernationSettings =