WebKit MediaStream cleanup: ASSERT-->DCHECK and ASSERT_NOT_REACHED-->NOTREACHED etc

third_party/WebKit/Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp

 /*
  * Copyright (C) 2013 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 21 matching lines @@
     return new RTCDTMFToneChangeEvent;
 }
 
 RawPtr<RTCDTMFToneChangeEvent> RTCDTMFToneChangeEvent::create(const String& tone)
 {
     return new RTCDTMFToneChangeEvent(tone);
 }
 
 RawPtr<RTCDTMFToneChangeEvent> RTCDTMFToneChangeEvent::create(const AtomicString& type, const RTCDTMFToneChangeEventInit& initializer)
 {
-    ASSERT(type == EventTypeNames::tonechange);
+    DCHECK(type == EventTypeNames::tonechange);
     return new RTCDTMFToneChangeEvent(initializer);
 }
 
 RTCDTMFToneChangeEvent::RTCDTMFToneChangeEvent()
 {
 }
 
 RTCDTMFToneChangeEvent::RTCDTMFToneChangeEvent(const String& tone)
     : Event(EventTypeNames::tonechange, false, false)
     , m_tone(tone)
@@ skipping 21 matching lines @@
     return EventNames::RTCDTMFToneChangeEvent;
 }
 
 DEFINE_TRACE(RTCDTMFToneChangeEvent)
 {
     Event::trace(visitor);
 }
 
 } // namespace blink