Add admin-granted permissions to Enterprise Privacy Settings page

This CL adds information about the number of apps that have been granted
particularly sensitive permissions (location, microphone, camera) by
the admin.

Bug: 32692748
Test: make RunSettingsRoboTests

Change-Id: I650d3e1ed3950960c58722b0c035a76daeb36478

src/com/android/settings/enterprise/DevicePolicyManagerWrapper.java

@@ -17,6 +17,7 @@
 package com.android.settings.enterprise;
 
 import android.content.ComponentName;
+import android.support.annotation.Nullable;
 
 /**
  * This interface replicates a subset of the android.app.admin.DevicePolicyManager (DPM). The
@@ -32,6 +33,14 @@ public interface DevicePolicyManagerWrapper {
      */
     ComponentName getDeviceOwnerComponentOnAnyUser();
 
+    /**
+     * Calls {@code DevicePolicyManager.getPermissionGrantState()}.
+     *
+     * @see android.app.admin.DevicePolicyManager#getPermissionGrantState
+     */
+    int getPermissionGrantState(@Nullable ComponentName admin, String packageName,
+            String permission);
+
     /**
      * Calls {@code DevicePolicyManager.getLastSecurityLogRetrievalTime()}.
      *