Reland "media/track: Replace wtf/Assertions.h macros in favor of base/logging.h macros"

third_party/WebKit/Source/core/html/track/vtt/VTTScanner.h

 /*
  * Copyright (c) 2013, Opera Software ASA. 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 198 matching lines @@
         ::skipUntil<LChar, LCharPredicateAdapter<characterPredicate>>(current, m_end.characters8);
         return Run(getPosition(), current, m_is8Bit);
     }
     const UChar* current = m_data.characters16;
     ::skipUntil<UChar, characterPredicate>(current, m_end.characters16);
     return Run(getPosition(), reinterpret_cast<Position>(current), m_is8Bit);
 }
 
 inline void VTTScanner::seekTo(Position position)
 {
-    ASSERT(position <= end());
+    DCHECK_LE(position, end());
     m_data.characters8 = position;
 }
 
 inline UChar VTTScanner::currentChar() const
 {
-    ASSERT(getPosition() < end());
+    DCHECK_LT(getPosition(), end());
     return m_is8Bit ? *m_data.characters8 : *m_data.characters16;
 }
 
 inline void VTTScanner::advance(unsigned amount)
 {
-    ASSERT(getPosition() < end());
+    DCHECK_LT(getPosition(), end());
     if (m_is8Bit)
         m_data.characters8 += amount;
     else
         m_data.characters16 += amount;
 }
 
 } // namespace blink
 
 #endif