Don't show download button for HLS streams

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

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 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
@@ skipping 371 matching lines @@
 
 void HTMLMediaElement::setMediaStreamRegistry(URLRegistry* registry) {
   DCHECK(!s_mediaStreamRegistry);
   s_mediaStreamRegistry = registry;
 }
 
 bool HTMLMediaElement::isMediaStreamURL(const String& url) {
   return s_mediaStreamRegistry ? s_mediaStreamRegistry->contains(url) : false;
 }
 
+bool HTMLMediaElement::isHLSURL(const KURL& url) {
+  // Keep the same logic as in media_codec_util.h.
+  if (url.isNull() || url.isEmpty())
+    return false;
+
+  if (!url.isLocalFile() && !url.protocolIs("http") && !url.protocolIs("https"))
+    return false;
+
+  return url.getString().contains("m3u8");
+}
+
 HTMLMediaElement::HTMLMediaElement(const QualifiedName& tagName,
                                    Document& document)
     : HTMLElement(tagName, document),
       ActiveScriptWrappable(this),
       ActiveDOMObject(&document),
       m_loadTimer(this, &HTMLMediaElement::loadTimerFired),
       m_progressEventTimer(this, &HTMLMediaElement::progressEventTimerFired),
       m_playbackProgressTimer(this,
                               &HTMLMediaElement::playbackProgressTimerFired),
       m_audioTracksTimer(this, &HTMLMediaElement::audioTracksTimerFired),
@@ skipping 3669 matching lines @@
 
 IntRect HTMLMediaElement::AutoplayHelperClientImpl::absoluteBoundingBoxRect()
     const {
   IntRect result;
   if (LayoutObject* object = m_element->layoutObject())
     result = object->absoluteBoundingBoxRect();
   return result;
 }
 
 }  // namespace blink