content: Cleanup class/struct forward declarations

content/browser/service_worker/service_worker_request_handler.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_REQUEST_HANDLER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 14 matching lines @@
 class URLRequestInterceptor;
 }
 
 namespace storage {
 class BlobStorageContext;
 }
 
 namespace content {
 
 class ResourceContext;
-class ResourceMessageFilter;
 class ResourceRequestBodyImpl;
 class ServiceWorkerContextCore;
 class ServiceWorkerContextWrapper;
 class ServiceWorkerNavigationHandleCore;
 class ServiceWorkerProviderHost;
 
 // Abstract base class for routing network requests to ServiceWorkers.
 // Created one per URLRequest and attached to each request.
 class CONTENT_EXPORT ServiceWorkerRequestHandler
     : public base::SupportsUserData::Data {
@@ skipping 88 matching lines @@
   std::unique_ptr<ServiceWorkerProviderHost> host_for_cross_site_transfer_;
   int old_process_id_;
   int old_provider_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_