Convert some call sites to use explicit LayoutRect->FloatRect conversion.

Source/core/page/scrolling/ScrollingCoordinator.cpp

Index: Source/core/page/scrolling/ScrollingCoordinator.cpp
diff --git a/Source/core/page/scrolling/ScrollingCoordinator.cpp b/Source/core/page/scrolling/ScrollingCoordinator.cpp
index 88cb5374019492929b6536d1864a256ab31376c7..b3453c907d0d73caf70d7984fbdca9b06c3adb8a 100644
--- a/Source/core/page/scrolling/ScrollingCoordinator.cpp
+++ b/Source/core/page/scrolling/ScrollingCoordinator.cpp
@@ -503,7 +503,7 @@ static void projectRectsToGraphicsLayerSpaceRecursive(
         for (size_t i = 0; i < layerIter->value.size(); ++i) {
             LayoutRect rect = layerIter->value[i];
             if (compositedLayer != curLayer) {
-                FloatQuad compositorQuad = geometryMap.mapToContainer(rect, compositedLayer->layoutObject());
+                FloatQuad compositorQuad = geometryMap.mapToContainer(FloatRect(rect), compositedLayer->layoutObject());
                 rect = LayoutRect(compositorQuad.boundingBox());
                 // If the enclosing composited layer itself is scrolled, we have to undo the subtraction
                 // of its scroll offset since we want the offset relative to the scrolling content, not