Make sure to use CSSValueID and CSSPropertyID rather than integers.

Source/core/css/CSSComputedStyleDeclaration.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 372 matching lines @@
 };
 
 static const Vector<CSSPropertyID>& computableProperties()
 {
     DEFINE_STATIC_LOCAL(Vector<CSSPropertyID>, properties, ());
     if (properties.isEmpty())
         RuntimeCSSEnabled::filterEnabledCSSPropertiesIntoVector(staticComputableProperties, WTF_ARRAY_LENGTH(staticComputableProperties), properties);
     return properties;
 }
 
-static int valueForRepeatRule(int rule)
+static CSSValueID valueForRepeatRule(int rule)
 {
     switch (rule) {
         case RepeatImageRule:
             return CSSValueRepeat;
         case RoundImageRule:
             return CSSValueRound;
         case SpaceImageRule:
             return CSSValueSpace;
         default:
             return CSSValueStretch;
@@ skipping 812 matching lines @@
     }
 
     return result.toString();
 }
 
 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
 {
     if (!m_node)
         return 0;
 
     m_node->document()->updateLayoutIgnorePendingStylesheets();
 
     RefPtr<RenderStyle> style = m_node->computedStyle(m_pseudoElementSpecifier);
@@ skipping 35 matching lines @@
         list->prepend(ShadowValue::create(x.release(), y.release(), blur.release(), spread.release(), style.release(), color.release()));
     }
     return list.release();
 }
 
 PassRefPtr<CSSValue> CSSComputedStyleDeclaration::getPropertyCSSValue(CSSPropertyID propertyID) const
 {
     return getPropertyCSSValue(propertyID, UpdateLayout);
 }
 
-static int identifierForFamily(const AtomicString& family)
+static CSSValueID identifierForFamily(const AtomicString& family)
 {
     if (family == cursiveFamily)
         return CSSValueCursive;
     if (family == fantasyFamily)
         return CSSValueFantasy;
     if (family == monospaceFamily)
         return CSSValueMonospace;
     if (family == pictographFamily)
         return CSSValueWebkitPictograph;
     if (family == sansSerifFamily)
         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);
 }
 
 static PassRefPtr<CSSValue> renderTextDecorationFlagsToCSSValue(int textDecoration)
 {
     // Blink value is ignored.
     RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     if (textDecoration & TextDecorationUnderline)
         list->append(cssValuePool().createIdentifierValue(CSSValueUnderline));
@@ skipping 1684 matching lines @@
     static const CSSPropertyID propertiesAfterSlashSeperator[3] = { CSSPropertyBackgroundSize, CSSPropertyBackgroundOrigin, 
                                                                     CSSPropertyBackgroundClip };
 
     RefPtr<CSSValueList> list = CSSValueList::createSlashSeparated();
     list->append(getCSSPropertyValuesForShorthandProperties(StylePropertyShorthand(propertiesBeforeSlashSeperator, WTF_ARRAY_LENGTH(propertiesBeforeSlashSeperator))));
     list->append(getCSSPropertyValuesForShorthandProperties(StylePropertyShorthand(propertiesAfterSlashSeperator, WTF_ARRAY_LENGTH(propertiesAfterSlashSeperator))));
     return list.release();
 }
 
 } // namespace WebCore