Changed Pair to be a CSSValue

Source/core/css/CSSValue.cpp

Index: Source/core/css/CSSValue.cpp
diff --git a/Source/core/css/CSSValue.cpp b/Source/core/css/CSSValue.cpp
index b5b51b7c3f34233abbc09b3b1c31616656e72cab..d2c3068f33667a4cda71329837fd4dfdef05e8af 100644
--- a/Source/core/css/CSSValue.cpp
+++ b/Source/core/css/CSSValue.cpp
@@ -54,6 +54,7 @@
 #include "core/css/CSSUnicodeRangeValue.h"
 #include "core/css/CSSUnsetValue.h"
 #include "core/css/CSSValueList.h"
+#include "core/css/CSSValuePair.h"
 
 namespace blink {
 
@@ -144,6 +145,8 @@ bool CSSValue::equals(const CSSValue& other) const
             return compareCSSValues<CSSUnicodeRangeValue>(*this, other);
         case ValueListClass:
             return compareCSSValues<CSSValueList>(*this, other);
+        case ValuePairClass:
+            return compareCSSValues<CSSValuePair>(*this, other);
         case LineBoxContainClass:
             return compareCSSValues<CSSLineBoxContainValue>(*this, other);
         case ImageSetClass:
@@ -210,6 +213,8 @@ String CSSValue::cssText() const
         return toCSSStepsTimingFunctionValue(this)->customCSSText();
     case UnicodeRangeClass:
         return toCSSUnicodeRangeValue(this)->customCSSText();
+    case ValuePairClass:
+        return toCSSValuePair(this)->customCSSText();
     case ValueListClass:
         return toCSSValueList(this)->customCSSText();
     case LineBoxContainClass:
@@ -300,6 +305,9 @@ void CSSValue::destroy()
     case UnicodeRangeClass:
         delete toCSSUnicodeRangeValue(this);
         return;
+    case ValuePairClass:
+        delete toCSSValuePair(this);
+        return;
     case ValueListClass:
         delete toCSSValueList(this);
         return;
@@ -397,6 +405,9 @@ void CSSValue::finalizeGarbageCollectedObject()
     case ValueListClass:
         toCSSValueList(this)->~CSSValueList();
         return;
+    case ValuePairClass:
+        toCSSValuePair(this)->~CSSValuePair();
+        return;
     case LineBoxContainClass:
         toCSSLineBoxContainValue(this)->~CSSLineBoxContainValue();
         return;
@@ -491,6 +502,9 @@ DEFINE_TRACE(CSSValue)
     case ValueListClass:
         toCSSValueList(this)->traceAfterDispatch(visitor);
         return;
+    case ValuePairClass:
+        toCSSValuePair(this)->traceAfterDispatch(visitor);
+        return;
     case LineBoxContainClass:
         toCSSLineBoxContainValue(this)->traceAfterDispatch(visitor);
         return;