Make sure to use CSSValueID and CSSPropertyID rather than integers.

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 4fc0fc5eb0af68b411368978d8741df06c0adade..c77fd48c58ac01459759ff5d3c20500347f031bf 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.cpp
+++ b/Source/core/css/CSSComputedStyleDeclaration.cpp
@@ -390,7 +390,7 @@ static const Vector<CSSPropertyID>& computableProperties()
     return properties;
 }
 
-static int valueForRepeatRule(int rule)
+static CSSValueID valueForRepeatRule(int rule)
 {
     switch (rule) {
         case RepeatImageRule:
@@ -1223,11 +1223,11 @@ void CSSComputedStyleDeclaration::setCssText(const String&, ExceptionCode& ec)
     ec = NO_MODIFICATION_ALLOWED_ERR;
 }
 
-static int cssIdentifierForFontSizeKeyword(int keywordSize)
+static CSSValueID cssIdentifierForFontSizeKeyword(int keywordSize)
 {
     ASSERT_ARG(keywordSize, keywordSize);
     ASSERT_ARG(keywordSize, keywordSize <= 8);
-    return CSSValueXxSmall + keywordSize - 1;
+    return static_cast<CSSValueID>(CSSValueXxSmall + keywordSize - 1);
 }
 
 PassRefPtr<CSSValue> CSSComputedStyleDeclaration::getFontSizeCSSValuePreferringKeyword() const
@@ -1283,7 +1283,7 @@ PassRefPtr<CSSValue> CSSComputedStyleDeclaration::getPropertyCSSValue(CSSPropert
     return getPropertyCSSValue(propertyID, UpdateLayout);
 }
 
-static int identifierForFamily(const AtomicString& family)
+static CSSValueID identifierForFamily(const AtomicString& family)
 {
     if (family == cursiveFamily)
         return CSSValueCursive;
@@ -1297,12 +1297,12 @@ static int identifierForFamily(const AtomicString& family)
         return CSSValueSansSerif;
     if (family == serifFamily)
         return CSSValueSerif;
-    return 0;
+    return CSSValueInvalid;
 }
 
 static PassRefPtr<CSSPrimitiveValue> valueForFamily(const AtomicString& family)
 {
-    if (int familyIdentifier = identifierForFamily(family))
+    if (CSSValueID familyIdentifier = identifierForFamily(family))
         return cssValuePool().createIdentifierValue(familyIdentifier);
     return cssValuePool().createValue(family.string(), CSSPrimitiveValue::CSS_STRING);
 }