Added PrivetHTTPResolution::Start for service name only

chrome/browser/local_discovery/privet_http_asynchronous_factory_impl.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 "chrome/browser/local_discovery/privet_http_asynchronous_factory_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/local_discovery/privet_http_impl.h"
@@ skipping 41 matching lines @@
 
 PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::~ResolutionImpl() {
 }
 
 const std::string&
 PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::GetName() {
   return name_;
 }
 
 void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::Start(
+    const ResultCallback& callback) {
+  service_resolver_ = service_discovery_client_->CreateServiceResolver(
+      name_, base::Bind(&ResolutionImpl::ServiceResolveComplete,
+                        base::Unretained(this), callback));
+  service_resolver_->StartResolving();
+}
+
+void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::ServiceResolveComplete(
+    const ResultCallback& callback,
+    ServiceResolver::RequestStatus result,
+    const ServiceDescription& description) {
+  if (result != ServiceResolver::STATUS_SUCCESS)
+    return callback.Run(scoped_ptr<PrivetHTTPClient>());
+
+  Start(description.address, callback);
+}
+
+void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::Start(
     const net::HostPortPair& address,
     const ResultCallback& callback) {
 #if defined(OS_MACOSX)
   // MAC already has IP there.
   callback.Run(scoped_ptr<PrivetHTTPClient>(
       new PrivetHTTPClientImpl(name_, address, request_context_.get())));
 #else  // OS_MACOSX
   net::AddressFamily address_family = net::ADDRESS_FAMILY_UNSPECIFIED;
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kPrivetIPv6Only)) {
@@ skipping 25 matching lines @@
 
   DCHECK(!address.empty());
 
   net::HostPortPair new_address =
       net::HostPortPair(IPAddressToHostString(address), port);
   callback.Run(scoped_ptr<PrivetHTTPClient>(
       new PrivetHTTPClientImpl(name_, new_address, request_context_.get())));
 }
 
 }  // namespace local_discovery