Cleanup usage of CSSPropertyID and CSSValueID inside Blink.

Source/core/css/CSSComputedStyleDeclaration.cpp

Index: Source/core/css/CSSComputedStyleDeclaration.cpp
diff --git a/Source/core/css/CSSComputedStyleDeclaration.cpp b/Source/core/css/CSSComputedStyleDeclaration.cpp
index bc99733a1b37f5230aec795524cba546f76dddc6..980ca2bc742e16ab51870891db409351934a3f2f 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.cpp
+++ b/Source/core/css/CSSComputedStyleDeclaration.cpp
@@ -2841,9 +2841,9 @@ bool CSSComputedStyleDeclaration::cssPropertyMatches(CSSPropertyID propertyID, c
         m_node->document()->updateLayoutIgnorePendingStylesheets();
         RenderStyle* style = m_node->computedStyle(m_pseudoElementSpecifier);
         if (style && style->fontDescription().keywordSize()) {
-            int sizeValue = cssIdentifierForFontSizeKeyword(style->fontDescription().keywordSize());
+            CSSValueID sizeValue = cssIdentifierForFontSizeKeyword(style->fontDescription().keywordSize());
             const CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(propertyValue);
-            if (primitiveValue->isIdent() && primitiveValue->getIdent() == sizeValue)
+            if (primitiveValue->isValueID() && primitiveValue->getValueID() == sizeValue)
                 return true;
         }
     }