Schedule image resource downloads by decreasing visual impact - Blink Side

public/platform/WebURLLoader.h

 /*
  * Copyright (C) 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 51 matching lines @@
     // the client.
     virtual void cancel() = 0;
 
     // Suspends/resumes an asynchronous load.
     virtual void setDefersLoading(bool) = 0;
 
     // Notifies the loader that the priority of a WebURLRequest has changed from
     // its previous value. For example, a preload request starts with low
     // priority, but may increase when the resource is needed for rendering.
     virtual void didChangePriority(WebURLRequest::Priority newPriority) { }
+    virtual void didChangePriority(WebURLRequest::Priority newPriority, int intraPriorityValue) { didChangePriority(newPriority); }
 };
 
 } // namespace blink
 
 #endif