Auto-rebaseline for r176651

LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt

Index: LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt
diff --git a/LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt b/LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt
index b50768a198a744b3fbed8b2fb6ae953c13a63266..ec3c40bdaa13f064a046e8391f391cf39b4784c1 100644
--- a/LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt
+++ b/LayoutTests/fast/css-grid-layout/grid-item-z-index-change-repaint-expected.txt
@@ -1,17 +1,17 @@
-(GraphicsLayer
-  (bounds 800.00 600.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 800.00 600.00)
-      (contentsOpaque 1)
-      (drawsContent 1)
-      (repaint rects
-        (rect 8.00 236.00 200.00 100.00)
-        (rect 8.00 236.00 200.00 100.00)
-        (rect 8.00 126.00 200.00 100.00)
-        (rect 8.00 126.00 200.00 100.00)
-      )
-    )
-  )
-)
+{
+  "bounds": [800, 600],
+  "children": [
+    {
+      "bounds": [800, 600],
+      "contentsOpaque": true,
+      "drawsContent": true,
+      "repaintRects": [
+        [8, 236, 200, 100],
+        [8, 236, 200, 100],
+        [8, 126, 200, 100],
+        [8, 126, 200, 100]
+      ]
+    }
+  ]
+}