Add configuration and interface permission checks to DeviceImpl.

device/devices_app/usb/public/interfaces/permission_provider.mojom

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module device.usb;
 
 import "device.mojom";
 
 interface PermissionProvider {
   // Filters a set of |requested_devices| down to the set of |allowed_guids|
   // that should be accessible to clients of the DeviceManager instance.
   HasDevicePermission(array<DeviceInfo> requested_devices)
       => (array<string> allowed_guids);
+
+  // Returns whether or not the client has permission to access
+  // |requested_configuration| on |device|.
+  HasConfigurationPermission(uint8 requested_configuration,
+                             DeviceInfo device) => (bool allowed);
+
+  // Returns whether or not the client has permission to access
+  // |requested_interface| on |device| when it is in configuration
+  // |configuration_value|.
+  HasInterfacePermission(uint8 requested_interface,
+                         uint8 configuration_value,
+                         DeviceInfo device) => (bool allowed);
+
+  // Requests a new binding to this service.
+  Bind(PermissionProvider& request);
 };