Have StyleResolver / StyleResolverState deal with Document references, not pointers

Source/core/css/resolver/FilterOperationResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 215 matching lines @@
 {
     // FIXME: Implement style resolution for the custom filter at-rule reference syntax.
     UNUSED_PARAM(filterValue);
     return 0;
 }
 
 static PassRefPtr<CustomFilterProgram> createCustomFilterProgram(CSSShaderValue* vertexShader, CSSShaderValue* fragmentShader,
     CustomFilterProgramType programType, const CustomFilterProgramMixSettings& mixSettings, CustomFilterMeshType meshType,
     StyleResolverState& state)
 {
-    ResourceFetcher* fetcher = state.document()->fetcher();
+    ResourceFetcher* fetcher = state.document().fetcher();
     KURL vertexShaderURL = vertexShader ? vertexShader->completeURL(fetcher) : KURL();
     KURL fragmentShaderURL = fragmentShader ? fragmentShader->completeURL(fetcher) : KURL();
     RefPtr<StyleCustomFilterProgram> program = StyleCustomFilterProgram::create(vertexShaderURL, vertexShader ? styleShader(vertexShader, state) : 0,
             fragmentShaderURL, fragmentShader ? styleShader(fragmentShader, state) : 0, programType, mixSettings, meshType);
         // FIXME
         // FIXME: Find out what the fixme above means.
     return program.release();
 }
 
 static PassRefPtr<CustomFilterOperation> createCustomFilterOperationWithInlineSyntax(CSSFilterValue* filterValue, StyleResolverState& state)
@@ skipping 148 matching lines @@
         }
         if (operationType == FilterOperation::REFERENCE) {
             if (filterValue->length() != 1)
                 continue;
             CSSValue* argument = filterValue->itemWithoutBoundsCheck(0);
 
             if (!argument->isCSSSVGDocumentValue())
                 continue;
 
             CSSSVGDocumentValue* svgDocumentValue = static_cast<CSSSVGDocumentValue*>(argument);
-            KURL url = state.document()->completeURL(svgDocumentValue->url());
+            KURL url = state.document().completeURL(svgDocumentValue->url());
 
             RefPtr<ReferenceFilterOperation> operation = ReferenceFilterOperation::create(svgDocumentValue->url(), url.fragmentIdentifier(), operationType);
-            if (SVGURIReference::isExternalURIReference(svgDocumentValue->url(), state.document())) {
+            if (SVGURIReference::isExternalURIReference(svgDocumentValue->url(), &state.document())) {
                 if (!svgDocumentValue->loadRequested())
                     state.elementStyleResources().addPendingSVGDocument(operation.get(), svgDocumentValue);
                 else if (svgDocumentValue->cachedSVGDocument())
                     operation->setDocumentResourceReference(adoptPtr(new DocumentResourceReference(svgDocumentValue->cachedSVGDocument())));
             }
             operations.operations().append(operation);
             continue;
         }
 
         // Check that all parameters are primitive values, with the
@@ skipping 63 matching lines @@
 
             CSSValue* cssValue = filterValue->itemWithoutBoundsCheck(0);
             if (!cssValue->isShadowValue())
                 continue;
 
             ShadowValue* item = static_cast<ShadowValue*>(cssValue);
             IntPoint location(item->x->computeLength<int>(style, rootStyle, zoomFactor), item->y->computeLength<int>(style, rootStyle, zoomFactor));
             int blur = item->blur ? item->blur->computeLength<int>(style, rootStyle, zoomFactor) : 0;
             StyleColor shadowColor;
             if (item->color)
-                shadowColor = state.document()->textLinkColors().colorFromPrimitiveValue(item->color.get());
+                shadowColor = state.document().textLinkColors().colorFromPrimitiveValue(item->color.get());
 
             operations.operations().append(DropShadowFilterOperation::create(location, blur, shadowColor.isValid() ? shadowColor.color() : Color::transparent, operationType));
             break;
         }
         case CSSFilterValue::UnknownFilterOperation:
         default:
             ASSERT_NOT_REACHED();
             break;
         }
     }
 
     outOperations = operations;
     return true;
 }
 
 } // namespace WebCore