Testing a fix to crbug.com/456059.

LayoutTests/fast/dom/HTMLScriptElement/resources/move-back-from-non-contextdoc.html

Index: LayoutTests/fast/dom/HTMLScriptElement/resources/move-back-from-non-contextdoc.html
diff --git a/LayoutTests/fast/dom/HTMLScriptElement/resources/append-child-adopt-node-error-frame.html b/LayoutTests/fast/dom/HTMLScriptElement/resources/move-back-from-non-contextdoc.html
similarity index 52%
copy from LayoutTests/fast/dom/HTMLScriptElement/resources/append-child-adopt-node-error-frame.html
copy to LayoutTests/fast/dom/HTMLScriptElement/resources/move-back-from-non-contextdoc.html
index 3095ba797b34950d7d684de02d426f87f45c6eeb..8e8794499842c34a179771f93828d819be187826 100644
--- a/LayoutTests/fast/dom/HTMLScriptElement/resources/append-child-adopt-node-error-frame.html
+++ b/LayoutTests/fast/dom/HTMLScriptElement/resources/move-back-from-non-contextdoc.html
@@ -8,8 +8,11 @@ function init()
     script.src = "does-not-exist.js";
     script.onerror = function () { window.top.done(); };
     document.body.appendChild(script);
-    var contextDoc = window.top.document.implementation.createDocument("", null);
-    contextDoc.adoptNode(document.documentElement);
+    // otherDoc's contextDocument is document.
+    var otherDoc = document.implementation.createDocument("", "a", null);
+    var divElement = otherDoc.createElement("div");
+    divElement.appendChild(script);
+    document.body.appendChild(script);
 }
 
 init();