Fire canplaythrough as soon as download defers to fix autoplay

media/base/download_rate_monitor.h

Index: media/base/download_rate_monitor.h
diff --git a/media/base/download_rate_monitor.h b/media/base/download_rate_monitor.h
index 4fca328858e1f8c187e53728ed1aed0338b332be..a27a7b6e25f9bb2513f86efd0aeb919a571aeed1 100644
--- a/media/base/download_rate_monitor.h
+++ b/media/base/download_rate_monitor.h
@@ -126,9 +126,6 @@ class MEDIA_EXPORT DownloadRateMonitor {
   Sample current_sample_;
   std::deque<Sample> sample_window_;
 
-  // True if actively downloading bytes, false otherwise.
-  bool is_downloading_data_;
-
   // Total number of bytes in the media file, 0 if unknown or undefined.
   int64 total_bytes_;
 
@@ -149,6 +146,9 @@ class MEDIA_EXPORT DownloadRateMonitor {
   // 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);
 };