Fix crash in ServiceWorkerRegistrationHandle

content/browser/service_worker/service_worker_registration_handle.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_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/service_worker/service_worker_registration.h"
 #include "content/browser/service_worker/service_worker_version.h"
 #include "content/common/service_worker/service_worker_types.h"
 
 namespace content {
 
 class ServiceWorkerContextCore;
 class ServiceWorkerDispatcherHost;
 class ServiceWorkerVersion;
 
 // Roughly Corresponds to one ServiceWorkerRegistration object in the renderer
 // process (WebServiceWorkerRegistrationImpl).
 // Has references to the corresponding ServiceWorkerRegistration and
 // ServiceWorkerVersions (therefore they're guaranteed to be alive while this
 // handle is around).
 class ServiceWorkerRegistrationHandle
     : public ServiceWorkerRegistration::Listener {
  public:
-  ServiceWorkerRegistrationHandle(
+  CONTENT_EXPORT ServiceWorkerRegistrationHandle(
       base::WeakPtr<ServiceWorkerContextCore> context,
       ServiceWorkerDispatcherHost* dispatcher_host,
       int provider_id,
       ServiceWorkerRegistration* registration);
   virtual ~ServiceWorkerRegistrationHandle();
 
   bool HasNoRefCount() const { return ref_count_ <= 0; }
   void IncrementRefCount();
   void DecrementRefCount();
 
@@ skipping 34 matching lines @@
   scoped_refptr<ServiceWorkerVersion> installing_version_;
   scoped_refptr<ServiceWorkerVersion> waiting_version_;
   scoped_refptr<ServiceWorkerVersion> active_version_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistrationHandle);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_H_