Implement some mothods in SharedWorkerHost and SharedWorkerServiceImpl

content/browser/shared_worker/shared_worker_service_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_SERVICE_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/singleton.h"
@@ skipping 73 matching lines @@
 
   void OnSharedWorkerMessageFilterClosing(
       SharedWorkerMessageFilter* filter);
 
  private:
   friend struct DefaultSingletonTraits<SharedWorkerServiceImpl>;
 
   SharedWorkerServiceImpl();
   virtual ~SharedWorkerServiceImpl();
 
+  SharedWorkerHost* FindSharedWorkerHost(
+      SharedWorkerMessageFilter* filter,
+      int worker_route_id);
+
   SharedWorkerInstance* FindSharedWorkerInstance(
       const GURL& url,
       const base::string16& name,
       const WorkerStoragePartition& worker_partition,
       ResourceContext* resource_context);
 
   ScopedVector<SharedWorkerHost> worker_hosts_;
   ObserverList<WorkerServiceObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedWorkerServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_SERVICE_IMPL_H_