Made ElementStyleResources store const CSSSVGDocumentValues

third_party/WebKit/Source/core/css/resolver/ElementStyleResources.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 86 matching lines @@
 
 StyleImage* ElementStyleResources::cursorOrPendingFromValue(CSSPropertyID property, const CSSCursorImageValue& value)
 {
     if (value.isCachePending(m_deviceScaleFactor)) {
         m_pendingImageProperties.add(property);
         return StylePendingImage::create(value);
     }
     return value.cachedImage(m_deviceScaleFactor);
 }
 
-void ElementStyleResources::addPendingSVGDocument(FilterOperation* filterOperation, CSSSVGDocumentValue* cssSVGDocumentValue)
+void ElementStyleResources::addPendingSVGDocument(FilterOperation* filterOperation, const CSSSVGDocumentValue* cssSVGDocumentValue)
 {
     m_pendingSVGDocuments.set(filterOperation, cssSVGDocumentValue);
 }
 
 void ElementStyleResources::loadPendingSVGDocuments(ComputedStyle* computedStyle)
 {
     if (!computedStyle->hasFilter() || m_pendingSVGDocuments.isEmpty())
         return;
 
     FilterOperations::FilterOperationVector& filterOperations = computedStyle->mutableFilter().operations();
     for (unsigned i = 0; i < filterOperations.size(); ++i) {
         FilterOperation* filterOperation = filterOperations.at(i);
         if (filterOperation->type() == FilterOperation::REFERENCE) {
             ReferenceFilterOperation* referenceFilter = toReferenceFilterOperation(filterOperation);
 
-            CSSSVGDocumentValue* value = m_pendingSVGDocuments.get(referenceFilter);
+            const CSSSVGDocumentValue* value = m_pendingSVGDocuments.get(referenceFilter);
             if (!value)
                 continue;
             DocumentResource* resource = value->load(m_document);
             if (!resource)
                 continue;
 
             // Stash the DocumentResource on the reference filter.
             ReferenceFilterBuilder::setDocumentResourceReference(referenceFilter, new DocumentResourceReference(resource));
         }
     }
@@ skipping 118 matching lines @@
     }
 }
 
 void ElementStyleResources::loadPendingResources(ComputedStyle* computedStyle)
 {
     loadPendingImages(computedStyle);
     loadPendingSVGDocuments(computedStyle);
 }
 
 } // namespace blink