Address regression bug report, revert the PaintInfo rect member function.

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 211 matching lines @@
 
 void RenderWidget::paintContents(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     LayoutPoint adjustedPaintOffset = paintOffset + location();
 
     // Tell the widget to paint now. This is the only time the widget is allowed
     // to paint itself. That way it will composite properly with z-indexed layers.
     IntPoint widgetLocation = m_widget->frameRect().location();
     IntPoint paintLocation(roundToInt(adjustedPaintOffset.x() + borderLeft() + paddingLeft()),
         roundToInt(adjustedPaintOffset.y() + borderTop() + paddingTop()));
-    IntRect paintRect = paintInfo.rect();
+    IntRect paintRect = paintInfo.rect;
 
     IntSize widgetPaintOffset = paintLocation - widgetLocation;
     // When painting widgets into compositing layers, tx and ty are relative to the enclosing compositing layer,
     // not the root. In this case, shift the CTM and adjust the paintRect to be root-relative to fix plug-in drawing.
     if (!widgetPaintOffset.isZero()) {
         paintInfo.context->translate(widgetPaintOffset);
         paintRect.move(-widgetPaintOffset);
     }
     m_widget->paint(paintInfo.context, paintRect);
 
@@ skipping 52 matching lines @@
     if (style()->hasBorderRadius())
         paintInfo.context->restore();
 
     // Paint a partially transparent wash over selected widgets.
     if (isSelected() && !document()->printing()) {
         // FIXME: selectionRect() is in absolute, not painting coordinates.
         paintInfo.context->fillRect(pixelSnappedIntRect(selectionRect()), selectionBackgroundColor());
     }
 
     if (hasLayer() && layer()->canResize())
-        layer()->paintResizer(paintInfo.context, roundedIntPoint(adjustedPaintOffset), paintInfo.rect());
+        layer()->paintResizer(paintInfo.context, roundedIntPoint(adjustedPaintOffset), paintInfo.rect);
 }
 
 void RenderWidget::setIsOverlapped(bool isOverlapped)
 {
     ASSERT(m_widget);
     ASSERT(m_widget->isFrameView());
     toFrameView(m_widget.get())->setIsOverlapped(isOverlapped);
 }
 
 void RenderWidget::deref()
@@ skipping 58 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 WebCore