Remove remaining dead code that was used to implement grouped permission drop downs

chrome/browser/permissions/permission_request_manager.h

 // Copyright 2014 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_PERMISSIONS_PERMISSION_REQUEST_MANAGER_H_
 #define CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_H_
 
 #include <deque>
 #include <unordered_map>
 
@@ skipping 119 matching lines @@
   // WebContentsObserver:
   void DidFinishNavigation(
       content::NavigationHandle* navigation_handle) override;
   void DocumentOnLoadCompletedInMainFrame() override;
   void DocumentLoadedInFrame(
       content::RenderFrameHost* render_frame_host) override;
   void WebContentsDestroyed() override;
 
   // PermissionPrompt::Delegate:
   const std::vector<PermissionRequest*>& Requests() override;
-  const std::vector<bool>& AcceptStates() override;
-  void ToggleAccept(int request_index, bool new_value) override;
   void TogglePersist(bool new_value) override;
   void Accept() override;
   void Deny() override;
   void Closing() override;
 
   // Posts a task which will allow the bubble to become visible if it is needed.
   void ScheduleShowBubble();
 
   // If we aren't already showing a bubble, dequeue and show a pending request.
   void DequeueRequestsAndShowBubble();
@@ skipping 47 matching lines @@
   // Whether the response to each request should be persisted.
   bool persist_;
 
   base::ObserverList<Observer> observer_list_;
   AutoResponseType auto_response_for_test_;
 
   base::WeakPtrFactory<PermissionRequestManager> weak_factory_;
 };
 
 #endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_H_