Use webkit-margin-end for details element to get same margin for both ltr and rtl

Source/core/rendering/RenderDetailsMarker.cpp

 /*
  * Copyright (C) 2010, 2011 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 114 matching lines @@
 
     if (!paintInfo.rect.intersects(pixelSnappedIntRect(overflowRect)))
         return;
 
     const Color color(resolveColor(CSSPropertyColor));
     paintInfo.context->setStrokeColor(color);
     paintInfo.context->setStrokeStyle(SolidStroke);
     paintInfo.context->setStrokeThickness(1.0f);
     paintInfo.context->setFillColor(color);
 
-    boxOrigin.move(borderLeft() + paddingLeft(), borderTop() + paddingTop());
+    if (style()->writingMode() == TopToBottomWritingMode || style()->writingMode() == BottomToTopWritingMode) // Horizontal mode
+        boxOrigin.move(borderLeft() + paddingLeft() + (style()->isLeftToRightDirection() ? marginLeft(): marginRight()), borderTop() + paddingTop());
+    else
+        boxOrigin.move(borderLeft() + paddingLeft(), borderTop() + paddingTop());

[leviw_travelin_and_unemployed, 2014/06/10 19:06:58]

This seems wrong. Why do you only consider margin in the horizontal case?

     paintInfo.context->fillPath(getPath(boxOrigin));
 }
 
 bool RenderDetailsMarker::isOpen() const
 {
     for (RenderObject* renderer = parent(); renderer; renderer = renderer->parent()) {
         if (!renderer->node())
             continue;
         if (isHTMLDetailsElement(*renderer->node()))
             return !toElement(renderer->node())->getAttribute(openAttr).isNull();
         if (isHTMLInputElement(*renderer->node()))
             return true;
     }
 
     return false;
 }
 
 }