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

Source/core/css/resolver/AnimatedStyleBuilder.cpp

Index: Source/core/css/resolver/AnimatedStyleBuilder.cpp
diff --git a/Source/core/css/resolver/AnimatedStyleBuilder.cpp b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
index d810f0bf0832edb452b78a5b8e6986bf369fbb45..9127fd126563ef0696b8f6a867ae6dd2f3018600 100644
--- a/Source/core/css/resolver/AnimatedStyleBuilder.cpp
+++ b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
@@ -528,20 +528,20 @@ void AnimatedStyleBuilder::applyProperty(CSSPropertyID property, StyleResolverSt
     case CSSPropertyWebkitClipPath:
         style->setClipPath(toAnimatableClipPathOperation(value)->clipPathOperation());
         return;
-    case CSSPropertyWebkitColumnCount:
+    case CSSPropertyColumnCount:
         style->setColumnCount(animatableValueRoundClampTo<unsigned short>(value, 1));
         return;
-    case CSSPropertyWebkitColumnGap:
+    case CSSPropertyColumnGap:
         style->setColumnGap(clampTo(toAnimatableDouble(value)->toDouble(), 0));
         return;
-    case CSSPropertyWebkitColumnRuleColor:
+    case CSSPropertyColumnRuleColor:
         style->setColumnRuleColor(toAnimatableColor(value)->color());
         style->setVisitedLinkColumnRuleColor(toAnimatableColor(value)->visitedLinkColor());
         return;
-    case CSSPropertyWebkitColumnWidth:
+    case CSSPropertyColumnWidth:
         style->setColumnWidth(clampTo(toAnimatableDouble(value)->toDouble(), std::numeric_limits<float>::epsilon()));
         return;
-    case CSSPropertyWebkitColumnRuleWidth:
+    case CSSPropertyColumnRuleWidth:
         style->setColumnRuleWidth(animatableValueRoundClampTo<unsigned short>(value));
         return;
     case CSSPropertyWebkitFilter: