Remove stale-while-revalidate from blink

third_party/WebKit/Source/platform/loader/fetch/Resource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
     rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 264 matching lines @@
   }
   // The argument must never be |NotChecked|.
   void setIntegrityDisposition(ResourceIntegrityDisposition);
   ResourceIntegrityDisposition integrityDisposition() const {
     return m_integrityDisposition;
   }
   bool mustRefetchDueToIntegrityMetadata(const FetchRequest&) const;
 
   double currentAge() const;
   double freshnessLifetime() const;
-  double stalenessLifetime() const;
 
   bool isAlive() const { return m_isAlive; }
 
   void setCacheIdentifier(const String& cacheIdentifier) {
     m_cacheIdentifier = cacheIdentifier;
   }
   String cacheIdentifier() const { return m_cacheIdentifier; }
 
   virtual void didSendData(unsigned long long /* bytesSent */,
                            unsigned long long /* totalBytesToBeSent */) {}
@@ skipping 205 matching lines @@
 };
 
 #define DEFINE_RESOURCE_TYPE_CASTS(typeName)                   \
   DEFINE_TYPE_CASTS(typeName##Resource, Resource, resource,    \
                     resource->getType() == Resource::typeName, \
                     resource.getType() == Resource::typeName);
 
 }  // namespace blink
 
 #endif