Simplify HTMLTrackElement::didCompleteLoad

Source/core/html/HTMLTrackElement.cpp

 /*
  * Copyright (C) 2011 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 200 matching lines @@
 
     // 6. Set the text track readiness state to loading.
     setReadyState(HTMLTrackElement::LOADING);
 
     // 7. Let URL be the track URL of the track element.
     KURL url = getNonEmptyURLAttribute(srcAttr);
 
     // 8. If the track element's parent is a media element then let CORS mode be the state of the parent media
     // element's crossorigin content attribute. Otherwise, let CORS mode be No CORS.
     if (!canLoadUrl(url)) {
-        didCompleteLoad(ensureTrack(), HTMLTrackElement::Failure);
+        didCompleteLoad(HTMLTrackElement::Failure);
         return;
     }
 
     ensureTrack()->scheduleLoad(url);
 }
 
 bool HTMLTrackElement::canLoadUrl(const KURL& url)
 {
     if (!RuntimeEnabledFeatures::videoTrackEnabled())
         return false;
@@ skipping 11 matching lines @@
         return false;
 
     if (!document().contentSecurityPolicy()->allowMediaFromSource(url)) {
         LOG(Media, "HTMLTrackElement::canLoadUrl(%s) -> rejected by Content Security Policy", urlForLoggingTrack(url).utf8().data());
         return false;
     }
 
     return dispatchBeforeLoadEvent(url.string());
 }
 
-void HTMLTrackElement::didCompleteLoad(LoadableTextTrack*, LoadStatus status)
+void HTMLTrackElement::didCompleteLoad(LoadStatus status)
 {
     // 4.8.10.12.3 Sourcing out-of-band text tracks (continued)
 
     // 4. Download: ...
     // If the fetching algorithm fails for any reason (network error, the server returns an error
     // code, a cross-origin check fails, etc), or if URL is the empty string or has the wrong origin
     // as determined by the condition at the start of this step, or if the fetched resource is not in
     // a supported format, then queue a task to first change the text track readiness state to failed
     // to load and then fire a simple event named error at the track element; and then, once that task
     // is queued, move on to the step below labeled monitoring.
@@ skipping 83 matching lines @@
 HTMLMediaElement* HTMLTrackElement::mediaElement() const
 {
     Element* parent = parentElement();
     if (parent && parent->isMediaElement())
         return toHTMLMediaElement(parentNode());
     return 0;
 }
 
 }