Auto-rebaseline for r176651

LayoutTests/virtual/softwarecompositing/layer-creation/fixed-position-nonscrollable-iframes-in-scrollable-page-expected.txt

 In all iframes, the green fixed-position element should not be composited.
-(GraphicsLayer
-  (bounds 785.00 4016.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 785.00 4016.00)
-      (contentsOpaque 1)
-      (drawsContent 1)
-      (children 2
-        (GraphicsLayer
-          (position 50.00 360.00)
-          (bounds 300.00 100.00)
-          (contentsOpaque 1)
-          (drawsContent 1)
-          (backgroundColor #00FFFF)
-        )
-        (GraphicsLayer
-          (children 2
-            (GraphicsLayer
-              (position 10.00 200.00)
-              (bounds 154.00 154.00)
-              (drawsContent 1)
-            )
-            (GraphicsLayer
-              (position 10.00 380.00)
-              (bounds 154.00 154.00)
-              (drawsContent 1)
-            )
-          )
-        )
-      )
-    )
-  )
-)
+{
+  "bounds": [785, 4016],
+  "children": [
+    {
+      "bounds": [785, 4016],
+      "contentsOpaque": true,
+      "drawsContent": true,
+      "children": [
+        {
+          "position": [50, 360],
+          "bounds": [300, 100],
+          "contentsOpaque": true,
+          "drawsContent": true,
+          "backgroundColor": "#00FFFF"
+        },
+        {
+          "children": [
+            {
+              "position": [10, 200],
+              "bounds": [154, 154],
+              "drawsContent": true
+            },
+            {
+              "position": [10, 380],
+              "bounds": [154, 154],
+              "drawsContent": true
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
 Composited box underneath iframe.