Make sure to use CSSValueID and CSSPropertyID rather than integers.

Source/core/css/CSSValuePool.h

Index: Source/core/css/CSSValuePool.h
diff --git a/Source/core/css/CSSValuePool.h b/Source/core/css/CSSValuePool.h
index 2d4d7d1fd5a2dc619400957f7bbdee4db43a7fa4..e640b7d190d596a5aafa071b79dca7427f65faff 100644
--- a/Source/core/css/CSSValuePool.h
+++ b/Source/core/css/CSSValuePool.h
@@ -26,13 +26,14 @@
 #ifndef CSSValuePool_h
 #define CSSValuePool_h
 
+#include "CSSPropertyNames.h"
 #include "CSSValueKeywords.h"
 #include "core/css/CSSInheritedValue.h"
 #include "core/css/CSSInitialValue.h"
 #include "core/css/CSSPrimitiveValue.h"
-#include <wtf/HashMap.h>
-#include <wtf/RefPtr.h>
-#include <wtf/text/AtomicStringHash.h>
+#include "wtf/HashMap.h"
+#include "wtf/RefPtr.h"
+#include "wtf/text/AtomicStringHash.h"
 
 namespace WebCore {
 
@@ -46,7 +47,8 @@ public:
     PassRefPtr<CSSInheritedValue> createInheritedValue() { return m_inheritedValue; }
     PassRefPtr<CSSInitialValue> createImplicitInitialValue() { return m_implicitInitialValue; }
     PassRefPtr<CSSInitialValue> createExplicitInitialValue() { return m_explicitInitialValue; }
-    PassRefPtr<CSSPrimitiveValue> createIdentifierValue(int identifier);
+    PassRefPtr<CSSPrimitiveValue> createIdentifierValue(CSSValueID identifier);
+    PassRefPtr<CSSPrimitiveValue> createIdentifierValue(CSSPropertyID identifier);
     PassRefPtr<CSSPrimitiveValue> createColorValue(unsigned rgbValue);
     PassRefPtr<CSSPrimitiveValue> createValue(double value, CSSPrimitiveValue::UnitTypes);
     PassRefPtr<CSSPrimitiveValue> createValue(const String& value, CSSPrimitiveValue::UnitTypes type) { return CSSPrimitiveValue::create(value, type); }