ui: Remove implicit flooring in skia rect conversion methods.

ui/views/widget/widget.cc

Index: ui/views/widget/widget.cc
diff --git a/ui/views/widget/widget.cc b/ui/views/widget/widget.cc
index d0c71ef2f5202a17f3c877ef7103b7264afc5add..40c64d62cf90169b04bdba0a353ec1c0fc0d8db6 100644
--- a/ui/views/widget/widget.cc
+++ b/ui/views/widget/widget.cc
@@ -1060,7 +1060,7 @@ bool Widget::OnNativeWidgetPaintAccelerated(const gfx::Rect& dirty_region) {
       force_clear = true;
     } else {
       // Determine if the layer fills the client area.
-      gfx::Rect layer_bounds = GetRootView()->layer()->bounds();
+      gfx::RectF layer_bounds = GetRootView()->layer()->bounds();
       layer_transform.TransformRect(&layer_bounds);
       gfx::Rect client_bounds = GetClientAreaBoundsInScreen();
       // Translate bounds to origin (client area bounds are offset to account