Separate the listeners and getters for the Autofill Private API.

chrome/browser/extensions/api/autofill_private/autofill_private_event_router.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_
 
 #include "base/macros.h"
 #include "components/autofill/core/browser/personal_data_manager_observer.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ skipping 20 matching lines @@
   static AutofillPrivateEventRouter* Create(
       content::BrowserContext* browser_context);
   ~AutofillPrivateEventRouter() override;
 
  protected:
   explicit AutofillPrivateEventRouter(content::BrowserContext* context);
 
   // KeyedService overrides:
   void Shutdown() override;
 
-  // EventRouter::Observer overrides:
-  void OnListenerAdded(const EventListenerInfo& details) override;
-  void OnListenerRemoved(const EventListenerInfo& details) override;
-
   // PersonalDataManagerObserver implementation.
   void OnPersonalDataChanged() override;
 
  private:
-  // Either listens or unlistens for changes to |personal_data_|, depending on
-  // whether clients are listening to the autofillPrivate API events.
-  void StartOrStopListeningForChanges();
-
   content::BrowserContext* context_;
 
   EventRouter* event_router_;
 
   autofill::PersonalDataManager* personal_data_;
 
   // Whether this class is currently listening for changes to |personal_data_|.
   bool listening_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillPrivateEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_