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

Source/core/css/parser/CSSPropertyParserTest.cpp

Index: Source/core/css/parser/CSSPropertyParserTest.cpp
diff --git a/Source/core/css/parser/CSSPropertyParserTest.cpp b/Source/core/css/parser/CSSPropertyParserTest.cpp
index 4b19f349aee20d762eb7d5e316a7567b58a6cdc7..be2e5420298f2e84e42f85c455131b6419c092e4 100644
--- a/Source/core/css/parser/CSSPropertyParserTest.cpp
+++ b/Source/core/css/parser/CSSPropertyParserTest.cpp
@@ -16,7 +16,7 @@ static unsigned computeNumberOfTracks(CSSValueList* valueList)
 {
     unsigned numberOfTracks = 0;
     for (auto& value : *valueList) {
-        if (value->isGridLineNamesValue())
+        if (value.isGridLineNamesValue())
             continue;
         ++numberOfTracks;
     }
@@ -49,10 +49,10 @@ TEST(CSSPropertyParserTest, GridTrackLimits)
     };
 
     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);
     }
 }