Move painting code from RenderBoxModelObject into BoxPainter.

Source/core/rendering/RenderWidget.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google 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.
@@ skipping 10 matching lines @@
  *
  */
 
 #include "config.h"
 #include "core/rendering/RenderWidget.h"
 
 #include "core/accessibility/AXObjectCache.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLPlugInElement.h"
+#include "core/paint/BoxPainter.h"
 #include "core/rendering/GraphicsContextAnnotator.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/compositing/CompositedLayerMapping.h"
 #include "core/rendering/compositing/RenderLayerCompositor.h"
 #include "wtf/HashMap.h"
 
 namespace blink {
 
@@ skipping 177 matching lines @@
     if (style()->hasBorderRadius()) {
         LayoutRect borderRect = LayoutRect(adjustedPaintOffset, size());
 
         if (borderRect.isEmpty())
             return;
 
         // Push a clip if we have a border radius, since we want to round the foreground content that gets painted.
         paintInfo.context->save();
         RoundedRect roundedInnerRect = style()->getRoundedInnerBorderFor(borderRect,
             paddingTop() + borderTop(), paddingBottom() + borderBottom(), paddingLeft() + borderLeft(), paddingRight() + borderRight(), true, true);
-        clipRoundedInnerRect(paintInfo.context, borderRect, roundedInnerRect);
+        BoxPainter::clipRoundedInnerRect(paintInfo.context, borderRect, roundedInnerRect);
     }
 
     Widget* widget = this->widget();
     if (widget)
         paintContents(paintInfo, paintOffset);
 
     if (style()->hasBorderRadius())
         paintInfo.context->restore();
 
     // Paint a partially transparent wash over selected widgets.
@@ skipping 76 matching lines @@
 CursorDirective RenderWidget::getCursor(const LayoutPoint& point, Cursor& cursor) const
 {
     if (widget() && widget()->isPluginView()) {
         // A plug-in is responsible for setting the cursor when the pointer is over it.
         return DoNotSetCursor;
     }
     return RenderReplaced::getCursor(point, cursor);
 }
 
 } // namespace blink