Adds a feature to MHTML serialization that omits subframes and subresources marked no-store.

third_party/WebKit/Source/core/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
     version 2 of the License, or (at your option) any later version.
@@ skipping 195 matching lines @@
 
     bool isUnusedPreload() const { return isPreloaded() && getPreloadResult() == PreloadNotReferenced; }
     bool isPreloaded() const { return m_preloadCount; }
     void increasePreloadCount() { ++m_preloadCount; }
     void decreasePreloadCount() { ASSERT(m_preloadCount); --m_preloadCount; }
 
     bool canReuseRedirectChain();
     bool mustRevalidateDueToCacheHeaders();
     bool canUseCacheValidator();
     bool isCacheValidator() const { return !m_revalidatingRequest.isNull(); }
-    bool hasCacheControlNoStoreHeader();
+    bool hasCacheControlNoStoreHeader() const;
     bool hasVaryHeader() const;
     virtual bool mustRefetchDueToIntegrityMetadata(const FetchRequest& request) const { return false; }
 
     double currentAge() const;
     double freshnessLifetime();
     double stalenessLifetime();
 
     bool isPurgeable() const;
     bool lock();
 
@@ skipping 134 matching lines @@
 
     Resource::Type m_type;
 };
 
 #define DEFINE_RESOURCE_TYPE_CASTS(typeName) \
     DEFINE_TYPE_CASTS(typeName##Resource, Resource, resource, resource->getType() == Resource::typeName, resource.getType() == Resource::typeName);
 
 } // namespace blink
 
 #endif