Rename {Author,UserAgent}ShadowRoot to {Open,Closed}ShadowRoot.

Source/core/layout/LayoutSliderContainer.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 91 matching lines @@
     bool isVertical = hasVerticalAppearance(input);
     style()->setFlexDirection(isVertical ? FlowColumn : FlowRow);
     TextDirection oldTextDirection = style()->direction();
     if (isVertical) {
         // FIXME: Work around rounding issues in RTL vertical sliders. We want them to
         // render identically to LTR vertical sliders. We can remove this work around when
         // subpixel rendering is enabled on all ports.
         style()->setDirection(LTR);
     }
 
-    Element* thumbElement = input->userAgentShadowRoot()->getElementById(ShadowElementNames::sliderThumb());
-    Element* trackElement = input->userAgentShadowRoot()->getElementById(ShadowElementNames::sliderTrack());
+    Element* thumbElement = input->closedShadowRoot()->getElementById(ShadowElementNames::sliderThumb());
+    Element* trackElement = input->closedShadowRoot()->getElementById(ShadowElementNames::sliderTrack());
     RenderBox* thumb = thumbElement ? thumbElement->renderBox() : 0;
     RenderBox* track = trackElement ? trackElement->renderBox() : 0;
 
     SubtreeLayoutScope layoutScope(*this);
     // Force a layout to reset the position of the thumb so the code below doesn't move the thumb to the wrong place.
     // FIXME: Make a custom Render class for the track and move the thumb positioning code there.
     if (track)
         layoutScope.setChildNeedsLayout(track);
 
     RenderFlexibleBox::layout();
@@ skipping 16 matching lines @@
         thumbLocation.setX(thumbLocation.x() - offset);
     thumb->setLocation(thumbLocation);
 
     // We need one-off invalidation code here because painting of the timeline element does not go through style.
     // Instead it has a custom implementation in C++ code.
     // Therefore the style system cannot understand when it needs to be paint invalidated.
     setShouldDoFullPaintInvalidation();
 }
 
 } // namespace blink