Move and rename RenderBR to LayoutBR.

Source/core/layout/LayoutTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 29 matching lines @@
 #include "core/layout/LayoutTableCell.h"
 #include "core/layout/compositing/CompositedLayerMapping.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/layout/svg/LayoutSVGContainer.h"
 #include "core/layout/svg/LayoutSVGImage.h"
 #include "core/layout/svg/LayoutSVGInlineText.h"
 #include "core/layout/svg/LayoutSVGPath.h"
 #include "core/layout/svg/LayoutSVGText.h"
 #include "core/layout/svg/SVGLayoutTreeAsText.h"
 #include "core/page/PrintContext.h"
-#include "core/rendering/RenderBR.h"
 #include "core/rendering/RenderDetailsMarker.h"
 #include "core/rendering/RenderFileUploadControl.h"
 #include "core/rendering/RenderInline.h"
 #include "core/rendering/RenderListItem.h"
 #include "core/rendering/RenderListMarker.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/svg/RenderSVGGradientStop.h"
 #include "core/rendering/svg/RenderSVGRoot.h"
 #include "wtf/HexNumber.h"
 #include "wtf/Vector.h"
@@ skipping 720 matching lines @@
     element->document().updateLayout();
 
     LayoutObject* renderer = element->renderer();
     if (!renderer || !renderer->isListItem())
         return String();
 
     return toRenderListItem(renderer)->markerText();
 }
 
 } // namespace blink