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

content/browser/renderer_host/render_widget_helper.cc

Index: content/browser/renderer_host/render_widget_helper.cc
diff --git a/content/browser/renderer_host/render_widget_helper.cc b/content/browser/renderer_host/render_widget_helper.cc
index e69ba494c0aa3c7b475bd847de28dbfe9dec1d32..a29babbf4123d0fb2649954b4913e2138749c6dd 100644
--- a/content/browser/renderer_host/render_widget_helper.cc
+++ b/content/browser/renderer_host/render_widget_helper.cc
@@ -214,15 +214,16 @@ void RenderWidgetHelper::OnCrossSiteSwapOutACK(
 
 void RenderWidgetHelper::CreateNewWindow(
     const ViewHostMsg_CreateWindow_Params& params,
+    bool no_javascript_access,
     base::ProcessHandle render_process,
     int* route_id,
     int* surface_id) {
-  if (params.opener_suppressed) {
-    // If the opener is supppressed, we should open the window in a new
-    // BrowsingInstance, and thus a new process.  That means the current
-    // renderer process will not be able to route messages to it.  Because of
-    // this, we will immediately show and navigate the window in
-    // OnCreateWindowOnUI, using the params provided here.
+  if (params.opener_suppressed || no_javascript_access) {
+    // If the opener is supppressed or script access is disallowed, we should
+    // open the window in a new BrowsingInstance, and thus a new process. That
+    // means the current renderer process will not be able to route messages to
+    // it. Because of this, we will immediately show and navigate the window
+    // in OnCreateWindowOnUI, using the params provided here.
     *route_id = MSG_ROUTING_NONE;
     *surface_id = 0;
   } else {