Clean up the getLayoutSVGResource*ById helpers

third_party/WebKit/Source/core/layout/svg/SVGLayoutTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2009 Apple Inc. All rights reserved.
  *           (C) 2005 Rob Buis <buis@kde.org>
  *           (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 690 matching lines @@
   ASSERT(stopElement);
   ASSERT(stop.style());
 
   ts << " [offset=" << stopElement->offset()->currentValue()->value()
      << "] [color=" << stopElement->stopColorIncludingOpacity() << "]\n";
 }
 
 void writeResources(TextStream& ts, const LayoutObject& object, int indent) {
   const ComputedStyle& style = object.styleRef();
   const SVGComputedStyle& svgStyle = style.svgStyle();
+  TreeScope& treeScope = object.document();
+  SVGTreeScopeResources& treeScopeResources =
+      treeScope.ensureSVGTreeScopedResources();
 
   // FIXME: We want to use SVGResourcesCache to determine which resources are
   // present, instead of quering the resource <-> id cache.
   // For now leave the DRT output as is, but later on we should change this so
   // cycles are properly ignored in the DRT output.
   if (!svgStyle.maskerResource().isEmpty()) {
     if (LayoutSVGResourceMasker* masker =
             getLayoutSVGResourceById<LayoutSVGResourceMasker>(
-                object.document(), svgStyle.maskerResource())) {
+                treeScopeResources, svgStyle.maskerResource())) {
       writeIndent(ts, indent);
       ts << " ";
       writeNameAndQuotedValue(ts, "masker", svgStyle.maskerResource());
       ts << " ";
       writeStandardPrefix(ts, *masker, 0);
       ts << " " << masker->resourceBoundingBox(&object) << "\n";
     }
   }
   if (ClipPathOperation* clipPathOperation = style.clipPath()) {
     if (clipPathOperation->type() == ClipPathOperation::REFERENCE) {
       const ReferenceClipPathOperation& clipPathReference =
           toReferenceClipPathOperation(*clipPathOperation);
       AtomicString id = SVGURIReference::fragmentIdentifierFromIRIString(
-          clipPathReference.url(), object.document());
+          clipPathReference.url(), treeScope);
       if (LayoutSVGResourceClipper* clipper =
               getLayoutSVGResourceById<LayoutSVGResourceClipper>(
-                  object.document(), id)) {
+                  treeScopeResources, id)) {
         writeIndent(ts, indent);
         ts << " ";
         writeNameAndQuotedValue(ts, "clipPath", id);
         ts << " ";
         writeStandardPrefix(ts, *clipper, 0);
         ts << " " << clipper->resourceBoundingBox(object.objectBoundingBox())
            << "\n";
       }
     }
   }
   if (style.hasFilter()) {
     const FilterOperations& filterOperations = style.filter();
     if (filterOperations.size() == 1) {
       const FilterOperation& filterOperation = *filterOperations.at(0);
       if (filterOperation.type() == FilterOperation::REFERENCE) {
         const auto& referenceFilterOperation =
             toReferenceFilterOperation(filterOperation);
         AtomicString id = SVGURIReference::fragmentIdentifierFromIRIString(
-            referenceFilterOperation.url(), object.document());
+            referenceFilterOperation.url(), treeScope);
         if (LayoutSVGResourceFilter* filter =
                 getLayoutSVGResourceById<LayoutSVGResourceFilter>(
-                    object.document(), id)) {
+                    treeScopeResources, id)) {
           writeIndent(ts, indent);
           ts << " ";
           writeNameAndQuotedValue(ts, "filter", id);
           ts << " ";
           writeStandardPrefix(ts, *filter, 0);
           ts << " " << filter->resourceBoundingBox(&object) << "\n";
         }
       }
     }
   }
 }
 
 }  // namespace blink