Delayed adding BluetoothEventRouter as BluetoothAdapter observer until when the

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 1b7d6e8fccbd0bffd009bbed831ad135160f468c..9cfe4330834a7af60e2818c9768ab087607d0205 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -211,6 +211,10 @@ class ExtensionService
   // initiative.
   const ExtensionSet* GetWipedOutExtensions() const;
 
+  // Notifies the extension event routers that are interested in knowing when
+  // the event listeners are added.
+  void NotifyExtensionEventRouters(const std::string& event_name);
+
   // Gets the object managing the set of pending extensions.
   virtual extensions::PendingExtensionManager*
       pending_extension_manager() OVERRIDE;