Implement CSSOM Smooth Scroll API

Source/core/rendering/RenderTextControlSingleLine.cpp

 /**
  * Copyright (C) 2006, 2007, 2010 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 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.
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     return RenderBlock::scrollLeft();
 }
 
 int RenderTextControlSingleLine::scrollTop() const
 {
     if (innerTextElement())
         return innerTextElement()->scrollTop();
     return RenderBlock::scrollTop();
 }
 
-void RenderTextControlSingleLine::setScrollLeft(int newLeft)
+void RenderTextControlSingleLine::setScrollLeft(int newLeft, ScrollBehavior scrollBehavior)
 {
     if (innerTextElement())
-        innerTextElement()->setScrollLeft(newLeft);
+        innerTextElement()->setScrollLeft(newLeft, scrollBehavior);
 }
 
-void RenderTextControlSingleLine::setScrollTop(int newTop)
+void RenderTextControlSingleLine::setScrollTop(int newTop, ScrollBehavior scrollBehavior)
 {
     if (innerTextElement())
-        innerTextElement()->setScrollTop(newTop);
+        innerTextElement()->setScrollTop(newTop, scrollBehavior);
 }
 
 HTMLInputElement* RenderTextControlSingleLine::inputElement() const
 {
     return toHTMLInputElement(node());
 }
 
 }