Delete unused code for exclusive access permission prompting.

chrome/browser/ui/exclusive_access/exclusive_access_manager.h

 // Copyright (c) 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_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_MANAGER_H_
 #define CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_MANAGER_H_
 
 #include <memory>
 
 #include "base/feature_list.h"
@@ skipping 51 matching lines @@
   // Called by Browser::TabClosingAt.
   void OnTabClosing(content::WebContents* web_contents);
 
   // Called by Browser::PreHandleKeyboardEvent.
   bool HandleUserKeyPress(const content::NativeWebKeyboardEvent& event);
 
   // Called by Browser::ContentsMouseEvent.
   void OnUserInput();
 
   // Called by platform ExclusiveAccessExitBubble.
-  void OnAcceptExclusiveAccessPermission();
-  void OnDenyExclusiveAccessPermission();
   void ExitExclusiveAccess();
   void RecordBubbleReshownUMA(ExclusiveAccessBubbleType type);
 
  private:
   // Called when the user has held down Escape.
   void HandleUserHeldEscape();
 
   ExclusiveAccessContext* const exclusive_access_context_;
   FullscreenController fullscreen_controller_;
   MouseLockController mouse_lock_controller_;
   base::OneShotTimer hold_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExclusiveAccessManager);
 };
 
 #endif  // CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_MANAGER_H_