DevTools: prepare to migrate worker ids from ints to strings.

content/browser/devtools/protocol/worker_handler.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 "content/browser/devtools/protocol/worker_handler.h"
 
 namespace content {
 namespace devtools {
 namespace worker {
 
 typedef DevToolsProtocolClient::Response Response;
 
 WorkerHandler::WorkerHandler() {
 }
 
 WorkerHandler::~WorkerHandler() {
 }
 
 void WorkerHandler::SetClient(scoped_ptr<Client> client) {
   client_.swap(client);
 }
 
 Response WorkerHandler::DisconnectFromWorker(int worker_id) {
   return Response::FallThrough();
 }
 
+Response WorkerHandler::DisconnectFromWorker(const std::string& worker_id) {
+  return Response::FallThrough();
+}
+
 }  // namespace worker
 }  // namespace devtools
 }  // namespace content