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

Source/core/paint/PartPainter.cpp

Index: Source/core/paint/PartPainter.cpp
diff --git a/Source/core/paint/PartPainter.cpp b/Source/core/paint/PartPainter.cpp
index 65be5b88059dcd00fefb12c6e9518e8d87c55313..cca01067c28938f506841233571607943df8cb22 100644
--- a/Source/core/paint/PartPainter.cpp
+++ b/Source/core/paint/PartPainter.cpp
@@ -46,7 +46,7 @@ void PartPainter::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffs
 
         // 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);
     }