Replace ASSERT()s with DCHECK*() in core/html/*.{cpp,h}.

third_party/WebKit/Source/core/html/HTMLStyleElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2010 Apple Inc. All rights reserved.
  *           (C) 2007 Rob Buis (buis@kde.org)
  *
  * 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
@@ skipping 103 matching lines @@
     return getAttribute(typeAttr);
 }
 
 void HTMLStyleElement::dispatchPendingLoadEvents()
 {
     styleLoadEventSender().dispatchPendingEvents();
 }
 
 void HTMLStyleElement::dispatchPendingEvent(StyleEventSender* eventSender)
 {
-    ASSERT_UNUSED(eventSender, eventSender == &styleLoadEventSender());
+    DCHECK_EQ(eventSender, &styleLoadEventSender());
     dispatchEvent(Event::create(m_loadedSheet ? EventTypeNames::load : EventTypeNames::error));
 }
 
 void HTMLStyleElement::notifyLoadedSheetAndAllCriticalSubresources(LoadedSheetErrorStatus errorStatus)
 {
     bool isLoadEvent = errorStatus == NoErrorLoadingSubresource;
     if (m_firedLoad && isLoadEvent)
         return;
     m_loadedSheet = isLoadEvent;
     styleLoadEventSender().dispatchEventSoon(this);
@@ skipping 14 matching lines @@
         styleSheet->setDisabled(setDisabled);
 }
 
 DEFINE_TRACE(HTMLStyleElement)
 {
     StyleElement::trace(visitor);
     HTMLElement::trace(visitor);
 }
 
 } // namespace blink