Notify DevTools about cached resources when stylesheet is restored.

Source/core/css/CSSImageValue.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 67 matching lines @@
     if (!m_accessedImage || !m_image->isImageResource() || !document.fetcher())
         return;
     if (document.fetcher()->cachedResource(KURL(ParsedURLString, m_absoluteURL)))
         return;
 
     ImageResource* resource = m_image->cachedImage();
     if (!resource)
         return;
 
     FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, resource->options());
+    document.fetcher()->notifyLoadedFromMemoryCache(resource);
     document.fetcher()->requestLoadStarted(resource, request, ResourceFetcher::ResourceLoadingFromCache);
 }
 
 bool CSSImageValue::hasFailedOrCanceledSubresources() const
 {
     if (!m_image || !m_image->isImageResource())
         return false;
     if (Resource* cachedResource = toStyleFetchedImage(m_image)->cachedImage())
         return cachedResource->loadFailedOrCanceled();
     return true;
@@ skipping 31 matching lines @@
 {
     KURL url = document.completeURL(m_relativeURL);
     if (url == m_absoluteURL)
         return;
     m_absoluteURL = url.string();
     m_accessedImage = false;
     m_image.clear();
 }
 
 } // namespace WebCore