Remove copy of CSSToLengthConversionData in FilterOperationResolver.

Source/core/css/resolver/FilterOperationResolver.cpp

Index: Source/core/css/resolver/FilterOperationResolver.cpp
diff --git a/Source/core/css/resolver/FilterOperationResolver.cpp b/Source/core/css/resolver/FilterOperationResolver.cpp
index bdbcd58dd64adb914b073786d97cfa962bf65654..bbc036eca55b8c010e0a3628a134d76cfb1d410c 100644
--- a/Source/core/css/resolver/FilterOperationResolver.cpp
+++ b/Source/core/css/resolver/FilterOperationResolver.cpp
@@ -69,7 +69,7 @@ static FilterOperation::OperationType filterOperationForType(CSSFilterValue::Fil
     return FilterOperation::NONE;
 }
 
-bool FilterOperationResolver::createFilterOperations(CSSValue* inValue, const CSSToLengthConversionData& unadjustedConversionData, FilterOperations& outOperations, StyleResolverState& state)
+bool FilterOperationResolver::createFilterOperations(CSSValue* inValue, const CSSToLengthConversionData& conversionData, FilterOperations& outOperations, StyleResolverState& state)
 {
     ASSERT(outOperations.isEmpty());
 
@@ -85,8 +85,6 @@ bool FilterOperationResolver::createFilterOperations(CSSValue* inValue, const CS
     if (!inValue->isValueList())
         return false;
 
-    float zoomFactor = unadjustedConversionData.zoom();
-    const CSSToLengthConversionData& conversionData = unadjustedConversionData.copyWithAdjustedZoom(zoomFactor);
     FilterOperations operations;
     for (CSSValueListIterator i = inValue; i.hasMore(); i.advance()) {
         CSSValue* currValue = i.value();