Change all uses of the RoundedRect class to use FloatRoundedRect instead.

Source/core/paint/PartPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/paint/PartPainter.h"
 
 #include "core/paint/BoxPainter.h"
 
 #include "core/paint/ScrollableAreaPainter.h"
@@ skipping 28 matching lines @@
         return;
 
     if (m_renderPart.style()->hasBorderRadius()) {
         LayoutRect borderRect = LayoutRect(adjustedPaintOffset, m_renderPart.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 = m_renderPart.style()->getRoundedInnerBorderFor(borderRect,
+        FloatRoundedRect roundedInnerRect = m_renderPart.style()->getRoundedInnerBorderFor(borderRect,
             m_renderPart.paddingTop() + m_renderPart.borderTop(), m_renderPart.paddingBottom() + m_renderPart.borderBottom(), m_renderPart.paddingLeft() + m_renderPart.borderLeft(), m_renderPart.paddingRight() + m_renderPart.borderRight(), true, true);
         BoxPainter::clipRoundedInnerRect(paintInfo.context, borderRect, roundedInnerRect);
     }
 
     if (m_renderPart.widget())
         m_renderPart.paintContents(paintInfo, paintOffset);
 
     if (m_renderPart.style()->hasBorderRadius())
         paintInfo.context->restore();
 
@@ skipping 29 matching lines @@
         paintInfo.context->translate(widgetPaintOffset.width(), widgetPaintOffset.height());
         paintRect.move(-widgetPaintOffset);
     }
     widget->paint(paintInfo.context, paintRect);
 
     if (!widgetPaintOffset.isZero())
         paintInfo.context->translate(-widgetPaintOffset.width(), -widgetPaintOffset.height());
 }
 
 } // namespace blink