Remove referrer setter from CSSImageValue

third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/parser/CSSPropertyParserHelpers.h"
 
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/CSSColorValue.h"
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSGradientValue.h"
@@ skipping 1248 matching lines @@
   }
   if (!result || !args.atEnd())
     return nullptr;
   range = rangeCopy;
   return result;
 }
 
 static CSSValue* createCSSImageValueWithReferrer(
     const AtomicString& rawValue,
     const CSSParserContext* context) {
-  CSSValue* imageValue =
-      CSSImageValue::create(rawValue, context->completeURL(rawValue));
-  toCSSImageValue(imageValue)->setReferrer(context->referrer());
+  CSSValue* imageValue = CSSImageValue::create(
+      rawValue, context->completeURL(rawValue), context->referrer());
   return imageValue;
 }
 
 static CSSValue* consumeImageSet(CSSParserTokenRange& range,
                                  const CSSParserContext* context) {
   CSSParserTokenRange rangeCopy = range;
   CSSParserTokenRange args = consumeFunction(rangeCopy);
   CSSImageSetValue* imageSet = CSSImageSetValue::create();
   do {
     AtomicString urlValue = consumeUrlAsStringView(args).toAtomicString();
@@ skipping 60 matching lines @@
 
 // https://drafts.csswg.org/css-shapes-1/#typedef-shape-box
 CSSIdentifierValue* consumeShapeBox(CSSParserTokenRange& range) {
   return consumeIdent<CSSValueContentBox, CSSValuePaddingBox, CSSValueBorderBox,
                       CSSValueMarginBox>(range);
 }
 
 }  // namespace CSSPropertyParserHelpers
 
 }  // namespace blink