Implement interfaces in PaintInfo and make it a class.

Source/core/rendering/RenderMultiColumnSet.cpp

Index: Source/core/rendering/RenderMultiColumnSet.cpp
diff --git a/Source/core/rendering/RenderMultiColumnSet.cpp b/Source/core/rendering/RenderMultiColumnSet.cpp
index 2c0175b79d81dd71525083e8f8386a2c67ea6dd2..bb3f9a4f8761a660f7f3adb411bdf15dfd761b51 100644
--- a/Source/core/rendering/RenderMultiColumnSet.cpp
+++ b/Source/core/rendering/RenderMultiColumnSet.cpp
@@ -329,7 +329,7 @@ void RenderMultiColumnSet::paintObject(PaintInfo& paintInfo, const LayoutPoint&
     // RenderBlocks do. Note this is a pretty minor issue, since the old column implementation clipped columns
     // anyway, thus making it impossible for them to overlap one another. It's also really unlikely that the columns
     // would overlap another block.
-    if (!m_flowThread || !isValid() || (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection))
+    if (!m_flowThread || !isValid() || (paintInfo.getPhase() != PaintPhaseForeground && paintInfo.getPhase() != PaintPhaseSelection))
         return;
 
     paintColumnRules(paintInfo, paintOffset);
@@ -337,7 +337,7 @@ void RenderMultiColumnSet::paintObject(PaintInfo& paintInfo, const LayoutPoint&
 
 void RenderMultiColumnSet::paintColumnRules(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
-    if (paintInfo.context->paintingDisabled())
+    if (paintInfo.getContext()->paintingDisabled())
         return;
 
     RenderStyle* blockStyle = toRenderMultiColumnBlock(parent())->style();
@@ -354,7 +354,7 @@ void RenderMultiColumnSet::paintColumnRules(PaintInfo& paintInfo, const LayoutPo
     if (colCount <= 1)
         return;
 
-    bool antialias = shouldAntialiasLines(paintInfo.context);
+    bool antialias = shouldAntialiasLines(paintInfo.getContext());
 
     bool leftToRight = style()->isLeftToRightDirection();
     LayoutUnit currLogicalLeftOffset = leftToRight ? LayoutUnit() : contentLogicalWidth();
@@ -382,7 +382,7 @@ void RenderMultiColumnSet::paintColumnRules(PaintInfo& paintInfo, const LayoutPo
             LayoutUnit ruleTop = isHorizontalWritingMode() ? paintOffset.y() + borderTop() + paddingTop() : paintOffset.y() + ruleLogicalLeft - ruleThickness / 2 + ruleAdd;
             LayoutUnit ruleBottom = isHorizontalWritingMode() ? ruleTop + contentHeight() : ruleTop + ruleThickness;
             IntRect pixelSnappedRuleRect = pixelSnappedIntRectFromEdges(ruleLeft, ruleTop, ruleRight, ruleBottom);
-            drawLineForBoxSide(paintInfo.context, pixelSnappedRuleRect.x(), pixelSnappedRuleRect.y(), pixelSnappedRuleRect.maxX(), pixelSnappedRuleRect.maxY(), boxSide, ruleColor, ruleStyle, 0, 0, antialias);
+            drawLineForBoxSide(paintInfo.getContext(), pixelSnappedRuleRect.x(), pixelSnappedRuleRect.y(), pixelSnappedRuleRect.maxX(), pixelSnappedRuleRect.maxY(), boxSide, ruleColor, ruleStyle, 0, 0, antialias);
         }
 
         ruleLogicalLeft = currLogicalLeftOffset;