Remove display:run-in as per https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/_tHSX…

Source/core/rendering/RenderTheme.cpp

 /**
  * This file is part of the theme implementation for form controls in WebCore.
  *
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 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.
  *
@@ skipping 85 matching lines @@
 
 void RenderTheme::adjustStyle(RenderStyle* style, Element* e, const CachedUAStyle& uaStyle)
 {
     // Force inline and table display styles to be inline-block (except for table- which is block)
     ControlPart part = style->appearance();
     if (style->display() == INLINE || style->display() == INLINE_TABLE || style->display() == TABLE_ROW_GROUP
         || style->display() == TABLE_HEADER_GROUP || style->display() == TABLE_FOOTER_GROUP
         || style->display() == TABLE_ROW || style->display() == TABLE_COLUMN_GROUP || style->display() == TABLE_COLUMN
         || style->display() == TABLE_CELL || style->display() == TABLE_CAPTION)
         style->setDisplay(INLINE_BLOCK);
-    else if (style->display() == COMPACT || style->display() == RUN_IN || style->display() == LIST_ITEM || style->display() == TABLE)
+    else if (style->display() == COMPACT || style->display() == LIST_ITEM || style->display() == TABLE)
         style->setDisplay(BLOCK);
 
     if (uaStyle.hasAppearance && isControlStyled(style, uaStyle)) {
         if (part == MenulistPart) {
             style->setAppearance(MenulistButtonPart);
             part = MenulistButtonPart;
         } else
             style->setAppearance(NoControlPart);
     }
 
@@ skipping 1197 matching lines @@
 
     // padding - not honored by WinIE, needs to be removed.
     style->resetPadding();
 
     // border - honored by WinIE, but looks terrible (just paints in the control box and turns off the Windows XP theme)
     // for now, we will not honor it.
     style->resetBorder();
 }
 
 } // namespace WebCore