content: Cleanup class/struct forward declarations

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 <stdint.h>
 
 #include <memory>
@@ skipping 21 matching lines @@
 class MessagePortMessageFilter;
 class ResourceContext;
 class ServiceWorkerContextCore;
 class ServiceWorkerContextWrapper;
 class ServiceWorkerHandle;
 class ServiceWorkerProviderHost;
 class ServiceWorkerRegistration;
 class ServiceWorkerRegistrationHandle;
 class ServiceWorkerVersion;
 struct ServiceWorkerObjectInfo;
-struct ServiceWorkerRegistrationInfo;
 struct ServiceWorkerRegistrationObjectInfo;
 struct ServiceWorkerVersionAttributes;
 
 class CONTENT_EXPORT ServiceWorkerDispatcherHost
     : public mojom::ServiceWorkerDispatcherHost,
       public BrowserMessageFilter {
  public:
   ServiceWorkerDispatcherHost(
       int render_process_id,
       MessagePortMessageFilter* message_port_message_filter,
@@ skipping 224 matching lines @@
   mojo::AssociatedBindingSet<mojom::ServiceWorkerDispatcherHost> bindings_;
 
   base::WeakPtrFactory<ServiceWorkerDispatcherHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_