Send user gesture to extensions for page and browser action clicks.

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 f0cf6abb288cc526e753c5116158b285c3c35801..dded981d3a2633e2477808af398857e0579e8022 100644
--- a/chrome/browser/extensions/event_router.h
+++ b/chrome/browser/extensions/event_router.h
@@ -126,6 +126,13 @@ class EventRouter : public content::NotificationObserver,
                                 Profile* restrict_to_profile,
                                 const GURL& event_url);
 
+  // As above, but enables sending an explicit user gesture indicator.
+  void DispatchEventToRenderers(const std::string& event_name,
+                                const std::string& event_args,
+                                Profile* restrict_to_profile,
+                                const GURL& event_url,
+                                UserGestureState user_gesture);
+
   // Same as above, except only send the event to the given extension.
   virtual void DispatchEventToExtension(const std::string& extension_id,
                                         const std::string& event_name,