A couple of ref-test tweaks in preparation of Skia changes

LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html

Index: LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html
diff --git a/LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html b/LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html
index a717fa4b4dd36f431d2917cefe917b125e33f9ac..fc70a9890d1081eed96107802aecc475deb6e174 100644
--- a/LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html
+++ b/LayoutTests/compositing/canvas-with-object-fit-contain-in-composited-layer-expected.html
@@ -15,7 +15,13 @@ function paintCanvas(canvas)
 {
   var ctx = canvas.getContext('2d');
   ctx.fillStyle = 'orange';
-  ctx.fillRect(50, 0, 100, 200);
+
+  ctx.save();
+  ctx.beginPath();
+  ctx.rect(50, 0, 100, 200);
+  ctx.clip();
+  ctx.fillRect(0, 0, 200, 200);
+  ctx.restore();
 
   ctx.fillStyle = 'green';
   ctx.fillRect(75, 75, 50, 50);