Plumb network stack information about existence of cached copy

webkit/child/weburlloader_impl.h

 // Copyright (c) 2012 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 WEBKIT_CHILD_WEBURLLOADER_IMPL_H_
 #define WEBKIT_CHILD_WEBURLLOADER_IMPL_H_
 
 #include "base/memory/ref_counted.h"
 #include "third_party/WebKit/public/platform/WebURLLoader.h"
 #include "webkit/child/webkit_child_export.h"
 
 namespace webkit_glue {
 
 class WebKitPlatformSupportImpl;
 struct ResourceResponseInfo;
 
 class WebURLLoaderImpl : public blink::WebURLLoader {
  public:
   explicit WebURLLoaderImpl(WebKitPlatformSupportImpl* platform);
   virtual ~WebURLLoaderImpl();
 
   static blink::WebURLError CreateError(const blink::WebURL& unreachable_url,
-                                         int reason);
+                                        bool stale_copy_in_cache,
+                                        int reason);
   WEBKIT_CHILD_EXPORT static void PopulateURLResponse(
       const GURL& url,
       const ResourceResponseInfo& info,
       blink::WebURLResponse* response);
 
   // WebURLLoader methods:
   virtual void loadSynchronously(
       const blink::WebURLRequest& request,
       blink::WebURLResponse& response,
       blink::WebURLError& error,
       blink::WebData& data);
   virtual void loadAsynchronously(
       const blink::WebURLRequest& request,
       blink::WebURLLoaderClient* client);
   virtual void cancel();
   virtual void setDefersLoading(bool value);
   virtual void didChangePriority(blink::WebURLRequest::Priority new_priority);
 
  private:
   class Context;
   scoped_refptr<Context> context_;
   WebKitPlatformSupportImpl* platform_;
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_CHILD_WEBURLLOADER_IMPL_H_