Remove -webkit-column-progression and -webkit-column-axis properties.

Source/core/css/parser/CSSPropertyParser.cpp

Index: Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
index de115bb91133da23bbbc11178ebc7941aec60aa2..3cc57e3c33780c09de9fff0faa1b35b65018243f 100644
--- a/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1277,14 +1277,6 @@ bool CSSPropertyParser::parseValue(CSSPropertyID propId, bool important)
         else
             validPrimitive = validUnit(value, FLength | FNonNeg);
         break;
-    case CSSPropertyWebkitColumnAxis:
-        if (id == CSSValueHorizontal || id == CSSValueVertical || id == CSSValueAuto)
-            validPrimitive = true;
-        break;
-    case CSSPropertyWebkitColumnProgression:
-        if (id == CSSValueNormal || id == CSSValueReverse)
-            validPrimitive = true;
-        break;
     case CSSPropertyWebkitColumnSpan: // none | all | 1 (will be dropped in the unprefixed property)
         if (id == CSSValueAll || id == CSSValueNone)
             validPrimitive = true;