Remove permission warnings from most tabs and windows APIs.

chrome/browser/extensions/event_router.h

Index: chrome/browser/extensions/event_router.h
diff --git a/chrome/browser/extensions/event_router.h b/chrome/browser/extensions/event_router.h
index 97d2254aded8fe7ae6c5c5dfe5a0fb1e0056c0c7..891f34da40d8ef05f8eafa1670e99d413080aaa9 100644
--- a/chrome/browser/extensions/event_router.h
+++ b/chrome/browser/extensions/event_router.h
@@ -68,6 +68,8 @@ class EventRouter : public content::NotificationObserver,
                            content::RenderProcessHost* process,
                            const std::string& extension_id);
 
+  EventListenerMap& listeners() { return listeners_; }
+
   // Add or remove the extension as having a lazy background page that listens
   // to the event. The difference from the above methods is that these will be
   // remembered even after the process goes away. We use this list to decide