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

Source/core/rendering/ColumnInfo.h

Index: Source/core/rendering/ColumnInfo.h
diff --git a/Source/core/rendering/ColumnInfo.h b/Source/core/rendering/ColumnInfo.h
index c463de376a54a73127425d2e1296c489abd2b132..ddad54e15936e0faebeaa326ce77384f267b138d 100644
--- a/Source/core/rendering/ColumnInfo.h
+++ b/Source/core/rendering/ColumnInfo.h
@@ -38,7 +38,6 @@ public:
         : m_desiredColumnWidth(0)
         , m_desiredColumnCount(1)
         , m_progressionAxis(InlineAxis)
-        , m_progressionIsReversed(false)
         , m_columnCount(1)
         , m_columnHeight(0)
         , m_minimumColumnHeight(0)
@@ -59,9 +58,6 @@ public:
     Axis progressionAxis() const { return m_progressionAxis; }
     void setProgressionAxis(Axis progressionAxis) { m_progressionAxis = progressionAxis; }
 
-    bool progressionIsReversed() const { return m_progressionIsReversed; }
-    void setProgressionIsReversed(bool reversed) { m_progressionIsReversed = reversed; }
-
     unsigned columnCount() const { return m_columnCount; }
     LayoutUnit columnHeight() const { return m_columnHeight; }
 
@@ -101,7 +97,6 @@ private:
     LayoutUnit m_desiredColumnWidth;
     unsigned m_desiredColumnCount;
     Axis m_progressionAxis;
-    bool m_progressionIsReversed;
 
     unsigned m_columnCount;
     LayoutUnit m_columnHeight;