Remove Navigation Transitions from Blink.

Source/core/html/HTMLLinkElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 134 matching lines @@
     bool async() const;
 
     CSSStyleSheet* sheet() const { return linkStyle() ? linkStyle()->sheet() : 0; }
     Document* import() const;
 
     bool styleSheetIsLoading() const;
 
     bool isImport() const { return linkImport(); }
     bool isDisabled() const { return linkStyle() && linkStyle()->isDisabled(); }
     bool isEnabledViaScript() const { return linkStyle() && linkStyle()->isEnabledViaScript(); }
-    void setEnabledIfExitTransitionStyle(bool);
 
     DOMSettableTokenList* sizes() const;
 
     void dispatchPendingEvent(LinkEventSender*);
     void scheduleEvent();
     void dispatchEventImmediately();
     static void dispatchPendingLoadEvents();
 
     // From LinkLoaderClient
     virtual bool shouldLoadLink() override;
@@ skipping 53 matching lines @@
     Vector<IntSize> m_iconSizes;
     LinkRelAttribute m_relAttribute;
 
     bool m_createdByParser;
     bool m_isInShadowTree;
 };
 
 } // namespace blink
 
 #endif // HTMLLinkElement_h