Making LayoutUnit conversions to Float type explicit

Source/core/rendering/RenderLayer.cpp

Index: Source/core/rendering/RenderLayer.cpp
diff --git a/Source/core/rendering/RenderLayer.cpp b/Source/core/rendering/RenderLayer.cpp
index 8f176c40d74a9b073c9d7546c2066bc0600b1f9c..2bf77db422f5707a56f4a906df7b2dda6eaa3d09 100644
--- a/Source/core/rendering/RenderLayer.cpp
+++ b/Source/core/rendering/RenderLayer.cpp
@@ -1062,8 +1062,7 @@ FloatPoint RenderLayer::perspectiveOrigin() const
     const LayoutRect borderBox = toRenderBox(renderer())->borderBoxRect();
     RenderStyle* style = renderer()->style();
 
-    return FloatPoint(floatValueForLength(style->perspectiveOriginX(), borderBox.width()),
-                      floatValueForLength(style->perspectiveOriginY(), borderBox.height()));
+    return FloatPoint(floatValueForLength(style->perspectiveOriginX(), borderBox.width().toFloat()), floatValueForLength(style->perspectiveOriginY(), borderBox.height().toFloat()));
 }
 
 static inline bool isFixedPositionedContainer(RenderLayer* layer)