Delete a ton more dead vertical writing mode code.

sky/engine/core/rendering/EllipsisBox.cpp

 /**
  * Copyright (C) 2003, 2006 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 115 matching lines @@
     Color c = renderer().selectionBackgroundColor();
     if (!c.alpha())
         return;
 
     // If the text color ends up being the same as the selection background, invert the selection
     // background.
     if (textColor == c)
         c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());
 
     GraphicsContextStateSaver stateSaver(*context);
-    LayoutUnit selectionBottom = root().selectionBottom();
     LayoutUnit top = root().selectionTop();
     LayoutUnit h = root().selectionHeight();
-    const int deltaY = roundToInt(renderer().style()->isFlippedLinesWritingMode() ? selectionBottom - logicalBottom() : logicalTop() - top);
+    const int deltaY = roundToInt(logicalTop() - top);
     const FloatPoint localOrigin(boxOrigin.x(), boxOrigin.y() - deltaY);
     FloatRect clipRect(localOrigin, FloatSize(m_logicalWidth, h.toFloat()));
     context->clip(clipRect);
     context->drawHighlightForText(font, constructTextRun(&renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), localOrigin, h, c);
 }
 
 bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
 {
     LayoutPoint adjustedLocation = accumulatedOffset + roundedLayoutPoint(topLeft());
 
@@ skipping 14 matching lines @@
     if (visibleToHitTestRequest(request) && boundsRect.intersects(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0))) {
         renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
         if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, boundsRect))
             return true;
     }
 
     return false;
 }
 
 } // namespace blink