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

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
diff --git a/chrome/browser/prerender/prerender_contents.cc b/chrome/browser/prerender/prerender_contents.cc
index 6ca9b69fb3cff1ed132e44221ab98956f74fbe44..113a6529490cb35662c35524f66b1e043418e74a 100644
--- a/chrome/browser/prerender/prerender_contents.cc
+++ b/chrome/browser/prerender/prerender_contents.cc
@@ -154,7 +154,8 @@ class PrerenderContents::TabContentsDelegateImpl
       WebContents* web_contents,
       int route_id,
       WindowContainerType window_container_type,
-      const string16& frame_name) OVERRIDE {
+      const string16& frame_name,
+      const GURL& target_url) OVERRIDE {
     // Since we don't want to permit child windows that would have a
     // window.opener property, terminate prerendering.
     prerender_contents_->Destroy(FINAL_STATUS_CREATE_NEW_WINDOW);