[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/rendering/RenderSlider.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010 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 30 matching lines @@
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
 #include <wtf/MathExtras.h>
 
 using std::min;
 
 namespace WebCore {
 
 const int RenderSlider::defaultTrackLength = 129;
 
-RenderSlider::RenderSlider(HTMLInputElement* element)
-    : RenderFlexibleBox(element)
+RenderSlider::RenderSlider(Handle<HTMLInputElement> element)
+    : RenderFlexibleBox(element.raw())
 {
     // We assume RenderSlider works only with <input type=range>.
     ASSERT(element->isRangeControl());
 }
 
 RenderSlider::~RenderSlider()
 {
 }
 
 bool RenderSlider::canBeReplacedWithInlineRunIn() const
@@ skipping 52 matching lines @@
 
     RenderFlexibleBox::layout();
 }
 
 bool RenderSlider::inDragMode() const
 {
     return sliderThumbElementOf(node())->active();
 }
 
 } // namespace WebCore