Remove UserGestureUtilizedCallback, it's unused outside of tests

third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 831 matching lines @@
   decode_audio_resolvers_.clear();
 }
 
 void BaseAudioContext::MaybeUnlockUserGesture() {
   if (!user_gesture_required_ || !UserGestureIndicator::ProcessingUserGesture())
     return;
 
   DCHECK(!autoplay_status_.has_value() ||
          autoplay_status_ != AutoplayStatus::kAutoplayStatusSucceeded);
 
-  UserGestureIndicator::UtilizeUserGesture();
   user_gesture_required_ = false;
   autoplay_status_ = AutoplayStatus::kAutoplayStatusSucceeded;
 }
 
 bool BaseAudioContext::IsAllowedToStart() const {
   if (!user_gesture_required_)
     return true;
 
   ToDocument(GetExecutionContext())
       ->AddConsoleMessage(ConsoleMessage::Create(
@@ skipping 75 matching lines @@
 }
 
 SecurityOrigin* BaseAudioContext::GetSecurityOrigin() const {
   if (GetExecutionContext())
     return GetExecutionContext()->GetSecurityOrigin();
 
   return nullptr;
 }
 
 }  // namespace blink