Fire canplaythrough as soon as download defers to fix autoplay

media/base/download_rate_monitor.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_DOWNLOAD_RATE_MONITOR_H_
 #define MEDIA_BASE_DOWNLOAD_RATE_MONITOR_H_
 
 #include <deque>
 
 #include "base/callback.h"
@@ skipping 131 matching lines @@
   // Bitrate of the media file, 0 if unknown.
   int bitrate_;
 
   // True if the monitor has not yet started or has been stopped, false
   // otherwise.
   bool stopped_;
 
   // True if the data source is a streaming source, false otherwise.
   bool streaming_;
 
+  // True if downloading has been deferred at least once, false otherwise.
+  bool has_deferred_;
+
   DISALLOW_COPY_AND_ASSIGN(DownloadRateMonitor);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_DOWNLOAD_RATE_MONITOR_H_