This was was cloned from bug 16920 as part of operation convergence.
Originally filed: 2012-05-03 14:55:00 +0000

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 #0   contributor@whatwg.org                          2012-05-03 14:55:56 +0000 
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Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html
Multipage: http://www.whatwg.org/C#media-playback
Complete: http://www.whatwg.org/c#media-playback

Comment:
Should run "rules for updating the text track rendering" when cue properties
or styles have changed

Posted from: 88.131.66.80 by simonp@opera.com
User agent: Opera/9.80 (Macintosh; Intel Mac OS X 10.7.3; U; en) Presto/2.10.229 Version/11.62
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 #1   Simon Pieters                                   2012-05-03 15:00:00 +0000 
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When the following properties have changed for an active cue, the rules for updating the text track rendering should be run:

the properties corresponding to the 'font' shorthand, including 'line-height'
'white-space'

When an active cue gets one of the following properties changed, the rules for updating the text track rendering should be run:
vertical
snapToLines
line
position
size
align
text

Also when changing startTime and endTime we might want to check if the cue should be currently active or not.

This should be done even if the video is paused, except if video playback hasn't ever started yet.
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 #2   Simon Pieters                                   2012-05-08 10:48:09 +0000 
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Also when the native controls become visible or not visible.
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