Use a converter to resolve style for -webkit-filter and backdrop-filter

third_party/WebKit/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 14 matching lines @@
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/resolver/FilterOperationResolver.h"
 
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSPrimitiveValueMappings.h"
 #include "core/css/CSSShadowValue.h"
-#include "core/css/resolver/TransformBuilder.h"
+#include "core/css/resolver/StyleResolverState.h"
 #include "core/layout/svg/ReferenceFilterBuilder.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/SVGURIReference.h"
 
 namespace blink {
 
 static FilterOperation::OperationType filterOperationForType(CSSValueID type)
 {
     switch (type) {
     case CSSValueUrl:
@@ skipping 18 matching lines @@
         return FilterOperation::BLUR;
     case CSSValueDropShadow:
         return FilterOperation::DROP_SHADOW;
     default:
         ASSERT_NOT_REACHED();
         // FIXME: We shouldn't have a type None since we never create them
         return FilterOperation::NONE;
     }
 }
 
-void FilterOperationResolver::createFilterOperations(const CSSValue& inValue, const CSSToLengthConversionData& conversionData, FilterOperations& outOperations, StyleResolverState& state)
+FilterOperations FilterOperationResolver::createFilterOperations(StyleResolverState& state, const CSSValue& inValue)
 {
-    ASSERT(outOperations.isEmpty());
+    FilterOperations operations;
 
     if (inValue.isPrimitiveValue()) {
         ASSERT(toCSSPrimitiveValue(inValue).getValueID() == CSSValueNone);
-        return;
+        return operations;
     }
 
-    FilterOperations operations;
+    const CSSToLengthConversionData& conversionData = state.cssToLengthConversionData();
     for (auto& currValue : toCSSValueList(inValue)) {
         CSSFunctionValue* filterValue = toCSSFunctionValue(currValue.get());
         FilterOperation::OperationType operationType = filterOperationForType(filterValue->functionType());
         ASSERT(filterValue->length() <= 1);
 
         if (operationType == FilterOperation::REFERENCE) {
             CSSSVGDocumentValue* svgDocumentValue = toCSSSVGDocumentValue(filterValue->item(0));
             KURL url = state.document().completeURL(svgDocumentValue->url());
 
             RefPtrWillBeRawPtr<ReferenceFilterOperation> operation = ReferenceFilterOperation::create(svgDocumentValue->url(), AtomicString(url.fragmentIdentifier()));
@@ skipping 61 matching lines @@
 
             operations.operations().append(DropShadowFilterOperation::create(location, blur, shadowColor));
             break;
         }
         default:
             ASSERT_NOT_REACHED();
             break;
         }
     }
 
-    outOperations = operations;
+    return operations;
 }
 
 } // namespace blink