Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/rendering/RenderFileUploadControl.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  *
  * 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 180 matching lines @@
         // Determine where the filename should be placed
         int contentLeft = tx + borderLeft() + paddingLeft();
         int buttonAndIconWidth = m_button->renderBox()->width() + afterButtonSpacing
             + (m_fileChooser->icon() ? iconWidth + iconFilenameSpacing : 0);
         int textX;
         if (style()->direction() == LTR)
             textX = contentLeft + buttonAndIconWidth;
         else
             textX = contentLeft + contentWidth() - buttonAndIconWidth - style()->font().width(textRun);
         // We want to match the button's baseline
-        RenderButton* buttonRenderer = toRenderButton(m_button->renderer());
+        RenderButton* buttonRenderer = static_cast<RenderButton*>(m_button->renderer());
         int textY = buttonRenderer->absoluteBoundingBoxRect().y()
             + buttonRenderer->marginTop() + buttonRenderer->borderTop() + buttonRenderer->paddingTop()
             + buttonRenderer->baselinePosition(true, false);
 
         paintInfo.context->setFillColor(style()->color());
         
         // Draw the filename
         paintInfo.context->drawBidiText(style()->font(), textRun, IntPoint(textX, textY));
         
         if (m_fileChooser->icon()) {
@@ skipping 76 matching lines @@
     return m_fileChooser->basenameForWidth(style()->font(), maxFilenameWidth());
 }
     
 HTMLFileUploadInnerButtonElement::HTMLFileUploadInnerButtonElement(Document* doc, Node* shadowParent)
     : HTMLInputElement(inputTag, doc)
     , m_shadowParent(shadowParent)
 {
 }
 
 } // namespace WebCore