Add support for the column-fill property.

Source/core/rendering/style/StyleMultiColData.cpp

Index: Source/core/rendering/style/StyleMultiColData.cpp
diff --git a/Source/core/rendering/style/StyleMultiColData.cpp b/Source/core/rendering/style/StyleMultiColData.cpp
index 9a4eb5ff3f1aaadefc925601a0fe18b88ca3bde9..90897bb28bfe53a1ec31ccb9661168a94a29380b 100644
--- a/Source/core/rendering/style/StyleMultiColData.cpp
+++ b/Source/core/rendering/style/StyleMultiColData.cpp
@@ -33,6 +33,7 @@ StyleMultiColData::StyleMultiColData()
     , m_autoWidth(true)
     , m_autoCount(true)
     , m_normalGap(true)
+    , m_fill(RenderStyle::initialColumnFill())
     , m_columnSpan(false)
     , m_breakBefore(RenderStyle::initialPageBreak())
     , m_breakAfter(RenderStyle::initialPageBreak())
@@ -52,6 +53,7 @@ StyleMultiColData::StyleMultiColData(const StyleMultiColData& o)
     , m_autoWidth(o.m_autoWidth)
     , m_autoCount(o.m_autoCount)
     , m_normalGap(o.m_normalGap)
+    , m_fill(o.m_fill)
     , m_columnSpan(o.m_columnSpan)
     , m_breakBefore(o.m_breakBefore)
     , m_breakAfter(o.m_breakAfter)
@@ -64,10 +66,11 @@ StyleMultiColData::StyleMultiColData(const StyleMultiColData& o)
 bool StyleMultiColData::operator==(const StyleMultiColData& o) const
 {
     return m_width == o.m_width && m_count == o.m_count && m_gap == o.m_gap
-           && m_rule == o.m_rule && m_visitedLinkColumnRuleColor == o.m_visitedLinkColumnRuleColor && m_breakBefore == o.m_breakBefore
-           && m_autoWidth == o.m_autoWidth && m_autoCount == o.m_autoCount && m_normalGap == o.m_normalGap
-           && m_columnSpan == o.m_columnSpan && m_breakAfter == o.m_breakAfter && m_breakInside == o.m_breakInside && m_axis == o.m_axis
-           && m_progression == o.m_progression;
+        && m_rule == o.m_rule && m_visitedLinkColumnRuleColor == o.m_visitedLinkColumnRuleColor && m_breakBefore == o.m_breakBefore
+        && m_autoWidth == o.m_autoWidth && m_autoCount == o.m_autoCount && m_normalGap == o.m_normalGap
+        && m_fill == o.m_fill && m_columnSpan == o.m_columnSpan
+        && m_breakAfter == o.m_breakAfter && m_breakInside == o.m_breakInside
+        && m_axis == o.m_axis && m_progression == o.m_progression;
 }
 
 } // namespace WebCore