Revert of Web Animations API: Load resources referenced in element.animate()

Source/core/css/resolver/StyleResourceLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google 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 28 matching lines @@
 #include "core/rendering/style/StylePendingImage.h"
 #include "core/rendering/svg/ReferenceFilterBuilder.h"
 
 namespace WebCore {
 
 StyleResourceLoader::StyleResourceLoader(ResourceFetcher* fetcher)
     : m_fetcher(fetcher)
 {
 }
 
-void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, ElementStyleResources& elementStyleResources)
+void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, const ElementStyleResources& elementStyleResources)
 {
     if (!renderStyle->hasFilter() || elementStyleResources.pendingSVGDocuments().isEmpty())
         return;
 
     Vector<RefPtr<FilterOperation> >& filterOperations = renderStyle->mutableFilter().operations();
     for (unsigned i = 0; i < filterOperations.size(); ++i) {
         RefPtr<FilterOperation> filterOperation = filterOperations.at(i);
         if (filterOperation->type() == FilterOperation::REFERENCE) {
             ReferenceFilterOperation* referenceFilter = toReferenceFilterOperation(filterOperation.get());
 
             CSSSVGDocumentValue* value = elementStyleResources.pendingSVGDocuments().get(referenceFilter);
             if (!value)
                 continue;
             DocumentResource* resource = value->load(m_fetcher);
             if (!resource)
                 continue;
 
             // Stash the DocumentResource on the reference filter.
             ReferenceFilterBuilder::setDocumentResourceReference(referenceFilter, adoptPtr(new DocumentResourceReference(resource)));
         }
     }
-
-    elementStyleResources.clearPendingSVGDocuments();
 }
 
 static PassRefPtr<StyleImage> doLoadPendingImage(ResourceFetcher* fetcher, StylePendingImage* pendingImage, float deviceScaleFactor, const ResourceLoaderOptions& options)
 {
     if (CSSImageValue* imageValue = pendingImage->cssImageValue())
         return imageValue->cachedImage(fetcher, options);
 
     if (CSSImageGeneratorValue* imageGeneratorValue
         = pendingImage->cssImageGeneratorValue()) {
         imageGeneratorValue->loadSubimages(fetcher);
@@ skipping 24 matching lines @@
     if (!image || !image->isPendingImage())
         return;
 
     ResourceLoaderOptions options = ResourceFetcher::defaultResourceOptions();
     options.allowCredentials = DoNotAllowStoredCredentials;
     options.corsEnabled = IsCORSEnabled;
 
     shapeValue->setImage(doLoadPendingImage(m_fetcher, toStylePendingImage(image), deviceScaleFactor, options));
 }
 
-void StyleResourceLoader::loadPendingImages(RenderStyle* style, ElementStyleResources& elementStyleResources)
+void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementStyleResources& elementStyleResources)
 {
     if (elementStyleResources.pendingImageProperties().isEmpty())
         return;
 
     PendingImagePropertyMap::const_iterator::Keys end = elementStyleResources.pendingImageProperties().end().keys();
     for (PendingImagePropertyMap::const_iterator::Keys it = elementStyleResources.pendingImageProperties().begin().keys(); it != end; ++it) {
         CSSPropertyID currentProperty = *it;
 
         switch (currentProperty) {
         case CSSPropertyBackgroundImage: {
@@ skipping 63 matching lines @@
         case CSSPropertyShapeInside:
             loadPendingShapeImage(style, style->shapeInside(), elementStyleResources.deviceScaleFactor());
             break;
         case CSSPropertyShapeOutside:
             loadPendingShapeImage(style, style->shapeOutside(), elementStyleResources.deviceScaleFactor());
             break;
         default:
             ASSERT_NOT_REACHED();
         }
     }
-
-    elementStyleResources.clearPendingImageProperties();
 }
 
 void StyleResourceLoader::loadPendingResources(RenderStyle* renderStyle, ElementStyleResources& elementStyleResources)
 {
     // Start loading images referenced by this style.
     loadPendingImages(renderStyle, elementStyleResources);
 
     // Start loading the SVG Documents referenced by this style.
     loadPendingSVGDocuments(renderStyle, elementStyleResources);
 }
 
 }