Update duration when demuxed packets exceed known duration.

content/renderer/media/render_media_log.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_MEDIA_RENDER_MEDIA_LOG_H_
 #define CONTENT_RENDERER_MEDIA_RENDER_MEDIA_LOG_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 51 matching lines @@
   // sequence for throttled send on |task_runner_| and coherent retrieval by
   // GetLastErrorMessage().
   mutable base::Lock lock_;
   std::unique_ptr<base::TickClock> tick_clock_;
   base::TimeTicks last_ipc_send_time_;
   std::vector<media::MediaLogEvent> queued_media_events_;
 
   // For enforcing max 1 pending send.
   bool ipc_send_pending_;
 
-  // Limits the number buffered extents changed events we send over IPC to one.
+  // Limits the number of events we send over IPC to one.
   std::unique_ptr<media::MediaLogEvent> last_buffered_extents_changed_event_;
+  std::unique_ptr<media::MediaLogEvent> last_duration_changed_event_;
 
   // Holds a copy of the most recent MEDIA_ERROR_LOG_ENTRY, if any.
   std::unique_ptr<media::MediaLogEvent> last_media_error_log_entry_;
 
   // Holds a copy of the most recent PIPELINE_ERROR, if any.
   std::unique_ptr<media::MediaLogEvent> last_pipeline_error_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderMediaLog);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_RENDER_MEDIA_LOG_H_