Make it so that allow_js_access: false can be used with background pages created by window.open.

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 2eb279e1b1e4b922ef34a4a9df16c9693b006a5f..7356f46aecfa4550fd67efc182de195257ef6fd8 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -1181,11 +1181,12 @@ IPC_MESSAGE_CONTROL1(ViewMsg_TempCrashWithData,
 // Sent by the renderer when it is creating a new window.  The browser creates
 // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
 // MSG_ROUTING_NONE, the view couldn't be created.
-IPC_SYNC_MESSAGE_CONTROL1_3(ViewHostMsg_CreateWindow,
+IPC_SYNC_MESSAGE_CONTROL1_4(ViewHostMsg_CreateWindow,
                             ViewHostMsg_CreateWindow_Params,
                             int /* route_id */,
                             int32 /* surface_id */,
-                            int64 /* cloned_session_storage_namespace_id */)
+                            int64 /* cloned_session_storage_namespace_id */,
+                            bool /* no_js_access */)
 
 // Similar to ViewHostMsg_CreateWindow, except used for sub-widgets, like
 // <select> dropdowns.  This message is sent to the TabContents that