Require the entry document to have the same origin as the open()d document

third_party/WebKit/Source/core/dom/Document.idl

Index: third_party/WebKit/Source/core/dom/Document.idl
diff --git a/third_party/WebKit/Source/core/dom/Document.idl b/third_party/WebKit/Source/core/dom/Document.idl
index 3ff51dc3d462ed8655b5b2f6bcc5a71ff519bd17..7696442efc76b1d2ef411e60d6b2ac05f2f20827 100644
--- a/third_party/WebKit/Source/core/dom/Document.idl
+++ b/third_party/WebKit/Source/core/dom/Document.idl
@@ -113,8 +113,8 @@ interface Document : Node {
     // FIXME: There are two open() methods in the spec.
     [Custom, CustomElementCallbacks, RaisesException] void open();
     [RaisesException] void close();
-    [CallWith=ActiveWindow, CustomElementCallbacks, RaisesException] void write(DOMString... text);
-    [CallWith=ActiveWindow, CustomElementCallbacks, RaisesException] void writeln(DOMString... text);
+    [CallWith=FirstWindow, CustomElementCallbacks, RaisesException] void write(DOMString... text);

[jochen (gone - plz use gerrit), 2016/01/29 08:01:37]

write() uses the window to call open() internally, so I had to update it here as
well

[philipj_slow, 2016/01/29 08:39:18]

FirstWindow isn't documented in https://www.chromium.org/blink/webidl, is a
Window that holds the responsible document of the entry settings object?

[jochen (gone - plz use gerrit), 2016/01/29 09:40:24]

done.

I didn't document ActiveWindow, as I'll delete this soon.

+    [CallWith=FirstWindow, CustomElementCallbacks, RaisesException] void writeln(DOMString... text);
 
     // user interaction
     [ImplementedAs=domWindow] readonly attribute Window? defaultView;