CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/core/css/parser/CSSPropertyParserTest.cpp

 // Copyright 2014 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 "config.h"
 #include "core/css/parser/CSSPropertyParser.h"
 
 #include "core/css/CSSValueList.h"
 #include "core/css/parser/CSSParser.h"
 
 #include <gtest/gtest.h>
 
 namespace blink {
 
 static unsigned computeNumberOfTracks(CSSValueList* valueList)
 {
     unsigned numberOfTracks = 0;
     for (auto& value : *valueList) {
-        if (value->isGridLineNamesValue())
+        if (value.isGridLineNamesValue())
             continue;
         ++numberOfTracks;
     }
     return numberOfTracks;
 }
 
 TEST(CSSPropertyParserTest, GridTrackLimits)
 {
     struct {
         const CSSPropertyID propertyID;
@@ skipping 12 matching lines @@
         {CSSPropertyGridTemplateRows, "repeat(400000, 2em minmax(10px, max-content) 0.5fr)", 999999},
         {CSSPropertyGridTemplateColumns, "repeat(600000, [first] 3vh 10% 2fr [nav] 10px auto 1fr 6em [last])", 999999},
         {CSSPropertyGridTemplateRows, "repeat(600000, [first] 3vh 10% 2fr [nav] 10px auto 1fr 6em [last])", 999999},
         {CSSPropertyGridTemplateColumns, "repeat(100000000000000000000, 10% 1fr)", 1000000},
         {CSSPropertyGridTemplateRows, "repeat(100000000000000000000, 10% 1fr)", 1000000},
         {CSSPropertyGridTemplateColumns, "repeat(100000000000000000000, 10% 5em 1fr auto auto 15px min-content)", 999999},
         {CSSPropertyGridTemplateRows, "repeat(100000000000000000000, 10% 5em 1fr auto auto 15px min-content)", 999999},
     };
 
     for (unsigned i = 0; i < WTF_ARRAY_LENGTH(testCases); ++i) {
-        RefPtrWillBeRawPtr<CSSValue> value = CSSParser::parseSingleValue(testCases[i].propertyID, testCases[i].input);
+        NullableCSSValue value = CSSParser::parseSingleValue(testCases[i].propertyID, testCases[i].input);
         ASSERT_TRUE(value);
         ASSERT_TRUE(value->isValueList());
-        EXPECT_EQ(computeNumberOfTracks(toCSSValueList(value.get())), testCases[i].output);
+        EXPECT_EQ(computeNumberOfTracks(toCSSValueList(value)), testCases[i].output);
     }
 }
 
 } // namespace blink