Added PrivetDeviceResolver to resolve a device and parse it as a privet device

chrome/browser/local_discovery/privet_device_resolver.cc

+// Copyright 2014 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 "base/bind.h"
+#include "chrome/browser/local_discovery/privet_device_resolver.h"
+
+namespace local_discovery {
+
+PrivetDeviceResolver::PrivetDeviceResolver(
+    ServiceDiscoveryClient* service_discovery_client,
+    const std::string& service_name,
+    const ResultCallback& callback)
+    : service_discovery_client_(service_discovery_client),
+      service_name_(service_name), callback_(callback) {
+}
+
+PrivetDeviceResolver::~PrivetDeviceResolver() {
+}
+
+void PrivetDeviceResolver::Start() {
+  service_resolver_ = service_discovery_client_->CreateServiceResolver(
+      service_name_,
+      base::Bind(&PrivetDeviceResolver::OnServiceResolved,
+                 base::Unretained(this)));
+  service_resolver_->StartResolving();
+}
+
+void PrivetDeviceResolver::OnServiceResolved(
+    ServiceResolver::RequestStatus request_status,
+    const ServiceDescription& service_description) {
+  DeviceDescription device_description;
+  if (request_status != ServiceResolver::STATUS_SUCCESS) {
+    callback_.Run(false, device_description);
+    return;
+  }
+
+  device_description.FillFromServiceDescription(service_description);
+  callback_.Run(true, device_description);
+}
+
+}  // namespace local_discovery