Don't resume paused media. Don't resume playing media after timeout.

media/blink/webmediaplayer_impl.h

Index: media/blink/webmediaplayer_impl.h
diff --git a/media/blink/webmediaplayer_impl.h b/media/blink/webmediaplayer_impl.h
index de61ecb85ed644a2748d82eafc1ff6c6e4713aef..65e9d44dad78e9d172bc1de048c7e2d439d92383 100644
--- a/media/blink/webmediaplayer_impl.h
+++ b/media/blink/webmediaplayer_impl.h
@@ -502,6 +502,9 @@ class MEDIA_BLINK_EXPORT WebMediaPlayerImpl
   enum class CanSuspendState { UNKNOWN, YES, NO };
   CanSuspendState can_suspend_state_;
 
+  // The time of the last call to OnHidden().
+  base::TimeTicks last_hidden_time_;
+
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };