Provide skeleton functionality for AppCache handling in the network service.

content/browser/appcache/appcache_job.h

 // Copyright (c) 2017 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_APPCACHE_APPCACHE_JOB_H_
 #define CONTENT_BROWSER_APPCACHE_APPCACHE_JOB_H_
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace net {
 class NetworkDelegate;
 class URLRequestJob;
 }
 
 namespace content {
 
 class AppCacheEntry;
 class AppCacheHost;
 class AppCacheRequest;
 class AppCacheStorage;
+class AppCacheURLLoaderJob;
 class URLRequestJob;
 
 // Interface for an AppCache job. This is used to send data stored in the
 // AppCache to networking consumers.
 // Subclasses implement this interface to wrap custom job objects like
 // URLRequestJob, URLLoaderJob, etc to ensure that these dependencies stay out
 // of the AppCache code.
 class CONTENT_EXPORT AppCacheJob
     : NON_EXPORTED_BASE(public base::NonThreadSafe),
       public base::SupportsWeakPtr<AppCacheJob> {
@@ skipping 55 matching lines @@
   // Informs the job that it should deliver an error response.
   virtual void DeliverErrorResponse() = 0;
 
   // Returns a weak pointer reference to the job.
   virtual base::WeakPtr<AppCacheJob> GetWeakPtr();
 
   // Returns the URL of the job.
   virtual const GURL& GetURL() const = 0;
 
   // Returns the underlying URLRequestJob if any. This only applies to
+  // AppCaches loaded via the URLLoader mechanism.
+  virtual net::URLRequestJob* AsURLRequestJob();
+
+  // Returns the underlying ApppCacheURLLoaderJob if any. This only applies to
   // AppCaches loaded via the URLRequest mechanism.
-  virtual net::URLRequestJob* AsURLRequestJob();
+  virtual AppCacheURLLoaderJob* AsURLLoaderJob();
 
  protected:
   AppCacheJob();
 
   base::WeakPtrFactory<AppCacheJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_JOB_H_