Remove UserGestureUtilizedCallback, it's unused outside of tests

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 252 matching lines @@
     return false;
   return frame->IsMainFrame();
 }
 
 unsigned LocalDOMWindow::PendingUnloadEventListeners() const {
   return WindowsWithUnloadEventListeners().count(
       const_cast<LocalDOMWindow*>(this));
 }
 
 bool LocalDOMWindow::AllowPopUp(LocalFrame& first_frame) {
-  if (UserGestureIndicator::UtilizeUserGesture())
+  if (UserGestureIndicator::ProcessingUserGesture())
     return true;
 
   Settings* settings = first_frame.GetSettings();
   return settings && settings->GetJavaScriptCanOpenWindowsAutomatically();
 }
 
 bool LocalDOMWindow::AllowPopUp() {
   return GetFrame() && AllowPopUp(*GetFrame());
 }
 
@@ skipping 1407 matching lines @@
   DOMWindow::Trace(visitor);
   Supplementable<LocalDOMWindow>::Trace(visitor);
 }
 
 DEFINE_TRACE_WRAPPERS(LocalDOMWindow) {
   visitor->TraceWrappers(custom_elements_);
   DOMWindow::TraceWrappers(visitor);
 }
 
 }  // namespace blink