Don't delay loading if autoplay is set and preload equals 'none'.

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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 876 matching lines @@
                     m_mediaSource = nullptr;
                     attemptLoad = false;
                 }
             }
         }
     }
 
     if (attemptLoad && canLoadURL(url, contentType, keySystem)) {
         ASSERT(!webMediaPlayer());
 
-        if (m_preload == MediaPlayer::None)
+        if (!autoplay() && m_preload == MediaPlayer::None)
             m_delayingLoadForPreloadNone = true;
         else
             startPlayerLoad();
     } else {
         mediaLoadingFailed(MediaPlayer::FormatError);
     }
 
     // If there is no poster to display, allow the media engine to render video frames as soon as
     // they are available.
     updateDisplayState();
@@ skipping 2755 matching lines @@
     visitor->trace(m_error);
     visitor->trace(m_currentSourceNode);
     visitor->trace(m_nextChildNodeToConsider);
     visitor->trace(m_textTracks);
     visitor->trace(m_textTracksWhenResourceSelectionBegan);
     WillBeHeapSupplementable<HTMLMediaElement>::trace(visitor);
     HTMLElement::trace(visitor);
 }
 
 }