Remove legacy markup box behavior when line-clamping.

Source/core/layout/line/RootInlineBox.h

Index: Source/core/layout/line/RootInlineBox.h
diff --git a/Source/core/layout/line/RootInlineBox.h b/Source/core/layout/line/RootInlineBox.h
index 48a21b56d47eb810d7e733340df14092f2229e83..6e10125df17b615fbf1df4d77bc210befcb83c19 100644
--- a/Source/core/layout/line/RootInlineBox.h
+++ b/Source/core/layout/line/RootInlineBox.h
@@ -93,7 +93,7 @@ public:
 
     bool lineCanAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth);
     // Return the truncatedWidth, the width of the truncated text + ellipsis.
-    FloatWillBeLayoutUnit placeEllipsis(const AtomicString& ellipsisStr, bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth, InlineBox* markupBox = 0);
+    FloatWillBeLayoutUnit placeEllipsis(const AtomicString& ellipsisStr, bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth);
     // Return the position of the EllipsisBox or -1.
     virtual FloatWillBeLayoutUnit placeEllipsisBox(bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth, FloatWillBeLayoutUnit &truncatedWidth, bool& foundBox) override final;