Add configuration and interface permission checks to DeviceImpl.

device/devices_app/usb/fake_permission_provider.cc

+// 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.
+
+#include "device/devices_app/usb/fake_permission_provider.h"
+
+namespace device {
+namespace usb {
+
+FakePermissionProvider::FakePermissionProvider() {}
+
+FakePermissionProvider::~FakePermissionProvider() {}
+
+void FakePermissionProvider::HasDevicePermission(
+    mojo::Array<DeviceInfoPtr> requested_devices,
+    const HasDevicePermissionCallback& callback) {
+  mojo::Array<mojo::String> allowed_guids(requested_devices.size());
+  for (size_t i = 0; i < requested_devices.size(); ++i)
+    allowed_guids[i] = requested_devices[i]->guid;
+  callback.Run(allowed_guids.Pass());
+}
+
+void FakePermissionProvider::HasConfigurationPermission(
+    uint8_t requested_configuration,
+    device::usb::DeviceInfoPtr device,
+    const HasInterfacePermissionCallback& callback) {
+  callback.Run(true);
+}
+void FakePermissionProvider::HasInterfacePermission(
+    uint8_t requested_interface,
+    uint8_t configuration_value,
+    device::usb::DeviceInfoPtr device,
+    const HasInterfacePermissionCallback& callback) {
+  callback.Run(true);
+}
+
+void FakePermissionProvider::Bind(
+    mojo::InterfaceRequest<PermissionProvider> request) {
+  bindings_.AddBinding(this, request.Pass());
+}
+
+}  // namespace usb
+}  // namespace device