Remove MediaPlayer::invalidTime()

Source/core/html/MediaFragmentURIParser.h

 /*
  * Copyright (C) 2011, 2012 Apple 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 23 matching lines @@
 class KURL;
 
 class MediaFragmentURIParser final {
 public:
 
     MediaFragmentURIParser(const KURL&);
 
     double startTime();
     double endTime();
 
-    static double invalidTimeValue();
-
 private:
 
     void parseFragments();
 
     enum TimeFormat { None, Invalid, NormalPlayTime, SMPTETimeCode, WallClockTimeCode };
     void parseTimeFragment();
     bool parseNPTFragment(const LChar*, unsigned length, double& startTime, double& endTime);
     bool parseNPTTime(const LChar*, unsigned length, unsigned& offset, double& time);
 
     KURL m_url;
     TimeFormat m_timeFormat;
     double m_startTime;
     double m_endTime;
     Vector<std::pair<String, String>> m_fragments;
 };
 
 } // namespace blink
 
 #endif