*** NOT FOR LANDING *** Unprefix multicol behind a flag

Source/core/animation/css/CSSAnimatableValueFactory.cpp

Index: Source/core/animation/css/CSSAnimatableValueFactory.cpp
diff --git a/Source/core/animation/css/CSSAnimatableValueFactory.cpp b/Source/core/animation/css/CSSAnimatableValueFactory.cpp
index abd9d8c51ef5f975efe67f65915e64d31ba6b226..5d0f222c77d6028bc807dda8ca8d30c3eb04477a 100644
--- a/Source/core/animation/css/CSSAnimatableValueFactory.cpp
+++ b/Source/core/animation/css/CSSAnimatableValueFactory.cpp
@@ -477,15 +477,15 @@ PassRefPtrWillBeRawPtr<AnimatableValue> CSSAnimatableValueFactory::create(CSSPro
         if (ClipPathOperation* operation = style.clipPath())
             return AnimatableClipPathOperation::create(operation);
         return AnimatableUnknown::create(CSSValueNone);
-    case CSSPropertyWebkitColumnCount:
+    case CSSPropertyColumnCount:
         return createFromDouble(style.columnCount());
-    case CSSPropertyWebkitColumnGap:
+    case CSSPropertyColumnGap:
         return createFromDouble(style.columnGap());
-    case CSSPropertyWebkitColumnRuleColor:
+    case CSSPropertyColumnRuleColor:
         return createFromColor(property, style);
-    case CSSPropertyWebkitColumnRuleWidth:
+    case CSSPropertyColumnRuleWidth:
         return createFromDouble(style.columnRuleWidth());
-    case CSSPropertyWebkitColumnWidth:
+    case CSSPropertyColumnWidth:
         return createFromDouble(style.columnWidth());
     case CSSPropertyWebkitFilter:
         return AnimatableFilterOperations::create(style.filter());