ServiceWorker: Introduce SWMessageSender in order to mock IPC messaging

content/child/service_worker/web_service_worker_registration_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_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_REGISTRATION_IMPL_H_
 #define CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_REGISTRATION_IMPL_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
+#include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerRegistration.h"
 
 namespace blink {
 class WebServiceWorker;
 class WebServiceWorkerRegistrationProxy;
 }
 
 namespace content {
 
 class ServiceWorkerRegistrationHandleReference;
 class ThreadSafeSender;
 struct ServiceWorkerObjectInfo;
 
-class WebServiceWorkerRegistrationImpl
+class CONTENT_EXPORT WebServiceWorkerRegistrationImpl
     : NON_EXPORTED_BASE(public blink::WebServiceWorkerRegistration) {
  public:
   explicit WebServiceWorkerRegistrationImpl(
       scoped_ptr<ServiceWorkerRegistrationHandleReference> handle_ref);
   virtual ~WebServiceWorkerRegistrationImpl();
 
   void SetInstalling(blink::WebServiceWorker* service_worker);
   void SetWaiting(blink::WebServiceWorker* service_worker);
   void SetActive(blink::WebServiceWorker* service_worker);
 
@@ skipping 28 matching lines @@
   blink::WebServiceWorkerRegistrationProxy* proxy_;
 
   std::vector<QueuedTask> queued_tasks_;
 
   DISALLOW_COPY_AND_ASSIGN(WebServiceWorkerRegistrationImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_REGISTRATION_IMPL_H_