Service worker registration error support

content/browser/service_worker/service_worker_dispatcher_host.h

 // Copyright 2013 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_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
 #include "content/public/browser/browser_message_filter.h"
 
 class GURL;
 
 namespace content {
 
 class ServiceWorkerContext;
 
-class ServiceWorkerDispatcherHost : public BrowserMessageFilter {
+class CONTENT_EXPORT ServiceWorkerDispatcherHost : public BrowserMessageFilter {
  public:
   ServiceWorkerDispatcherHost(int render_process_id,
                               ServiceWorkerContext* context);
 
   // BrowserIOMessageFilter implementation
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
 
  protected:
   virtual ~ServiceWorkerDispatcherHost();
 
  private:
   // IPC Message handlers
   void OnRegisterServiceWorker(int32 thread_id,
                                int32 request_id,
                                const GURL& scope,
                                const GURL& script_url);
   void OnUnregisterServiceWorker(int32 thread_id,
                                  int32 request_id,
                                  const GURL& scope);
   scoped_refptr<ServiceWorkerContext> context_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_