Make the LayoutRect->FloatRect constructor explicit.

Source/core/paint/SVGFilterPainter.cpp

Index: Source/core/paint/SVGFilterPainter.cpp
diff --git a/Source/core/paint/SVGFilterPainter.cpp b/Source/core/paint/SVGFilterPainter.cpp
index ce909e94b2c5565e2ddca98fe9c767f414fd9333..542e4cf41a76f3c7f13e4da93e47af551fe34932 100644
--- a/Source/core/paint/SVGFilterPainter.cpp
+++ b/Source/core/paint/SVGFilterPainter.cpp
@@ -186,7 +186,8 @@ void SVGFilterPainter::finishEffect(LayoutObject& object, SVGFilterRecordingCont
     if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, object, DisplayItem::SVGFilter))
         return;
 
-    LayoutObjectDrawingRecorder recorder(*context, object, DisplayItem::SVGFilter, LayoutRect::infiniteIntRect());
+    // TODO(chrishtr): stop using an infinite rect, and instead bound the filter.
+    LayoutObjectDrawingRecorder recorder(*context, object, DisplayItem::SVGFilter, LayoutRect(LayoutRect::infiniteIntRect()));
     if (filterData && filterData->m_state == FilterData::ReadyToPaint)
         paintFilteredContent(object, context, filterData);
 }