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

Source/core/css/resolver/AnimatedStyleBuilder.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 510 matching lines @@
         return;
     case CSSPropertyWebkitBorderHorizontalSpacing:
         style->setHorizontalBorderSpacing(animatableValueRoundClampTo<unsigned short>(value));
         return;
     case CSSPropertyWebkitBorderVerticalSpacing:
         style->setVerticalBorderSpacing(animatableValueRoundClampTo<unsigned short>(value));
         return;
     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:
         style->setFilter(toAnimatableFilterOperations(value)->operations());
         return;
     case CSSPropertyWebkitMaskBoxImageOutset:
         style->setMaskBoxImageOutset(animatableValueToBorderImageLengthBox(value, state));
         return;
     case CSSPropertyWebkitMaskBoxImageSlice:
         style->setMaskBoxImageSlices(animatableValueToLengthBox(toAnimatableLengthBoxAndBool(value)->box(), state, ValueRangeNonNegative));
@@ skipping 106 matching lines @@
     case CSSPropertyRy:
         style->setRy(animatableValueToLength(value, state, ValueRangeNonNegative));
         return;
 
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace blink