Remove some unnecessary and precision-losing pixel snapping code.

Source/core/rendering/RenderMenuList.cpp

 /*
  * This file is part of the select element renderer in WebCore.
  *
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *               2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * 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
@@ skipping 362 matching lines @@
     selectElement()->listBoxSelectItem(listIndex, allowMultiplySelections, shift, fireOnChangeNow);
 }
 
 bool RenderMenuList::multiple() const
 {
     return selectElement()->multiple();
 }
 
 IntRect RenderMenuList::elementRectRelativeToViewport() const
 {
-    return selectElement()->document().view()->contentsToWindow(pixelSnappedIntRect(absoluteBoundingBoxRect()));
+    return selectElement()->document().view()->contentsToWindow(absoluteBoundingBoxRect());
 }
 
 Element& RenderMenuList::ownerElement() const
 {
     return *selectElement();
 }
 
 const LayoutStyle* RenderMenuList::layoutStyleForItem(Element& element) const
 {
     return element.layoutStyle() ? element.layoutStyle() : element.computedStyle();
@@ skipping 197 matching lines @@
     HTMLElement* element = listItems[listIndex];
     return isHTMLOptionElement(*element) && toHTMLOptionElement(*element).selected();
 }
 
 void RenderMenuList::setTextFromItem(unsigned listIndex)
 {
     setTextFromOption(selectElement()->listToOptionIndex(listIndex));
 }
 
 } // namespace blink