Make the LayoutRect->FloatRect constructor explicit.

Source/core/paint/TableCellPainter.cpp

Index: Source/core/paint/TableCellPainter.cpp
diff --git a/Source/core/paint/TableCellPainter.cpp b/Source/core/paint/TableCellPainter.cpp
index 33a05f3b6dfe22449bbc06a0ae33b8b02456b6c9..3a20b1d9df22e6da123cd9962f12c3823a1806bc 100644
--- a/Source/core/paint/TableCellPainter.cpp
+++ b/Source/core/paint/TableCellPainter.cpp
@@ -115,7 +115,7 @@ void TableCellPainter::paintCollapsedBorders(const PaintInfo& paintInfo, const L
     if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType)))
         return;
 
-    LayoutObjectDrawingRecorder recorder(*graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType), borderRect);
+    LayoutObjectDrawingRecorder recorder(*graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType), LayoutRect(borderRect));
     Color cellColor = m_layoutTableCell.resolveColor(CSSPropertyColor);
     bool antialias = BoxPainter::shouldAntialiasLines(graphicsContext);
 
@@ -167,7 +167,8 @@ void TableCellPainter::paintBackgroundsBehindCell(const PaintInfo& paintInfo, co
         if (shouldClip) {
             LayoutRect clipRect(paintRect.location(), m_layoutTableCell.size());
             clipRect.expand(m_layoutTableCell.borderInsets());
-            paintInfo.context->clip(clipRect);
+            // TODO(chrishtr): should this be pixel-snapped?
+            paintInfo.context->clip(FloatRect(clipRect));
         }
         BoxPainter(m_layoutTableCell).paintFillLayers(paintInfo, c, bgLayer, paintRect, BackgroundBleedNone, SkXfermode::kSrcOver_Mode, backgroundObject);
     }
@@ -191,7 +192,8 @@ void TableCellPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo,
 
     LayoutRect visualOverflowRect = m_layoutTableCell.visualOverflowRect();
     visualOverflowRect.moveBy(paintOffset);
-    LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, pixelSnappedIntRect(visualOverflowRect));
+    // TODO(chrishtr): the pixel-snapping here is likely incorrect.
+    LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, LayoutRect(pixelSnappedIntRect(visualOverflowRect)));
 
     LayoutRect paintRect = paintBounds(paintOffset, DoNotAddOffsetFromParent);