Use GenericEventQueue class in MediaController

Use GenericEventQueue class in MediaController

Use GenericEventQueue class in MediaController to make the event dispatching
code simpler.

R=esprehn@chromium.org, tkent@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=172566

[acolwell GONE FROM CHROMIUM, 2014-04-24 21:18:40]

lgtm

[tkent, 2014-04-24 22:30:43]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2014-04-24 22:31:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/258563005/1

[commit-bot: I haz the power, 2014-04-24 23:52:10]

Change committed as 172566

[philipj_slow, 2014-04-25 12:16:04]

I think was an improvement, but just as an FYI the spec says "The task source
for the tasks listed in this section is the DOM manipulation task source" which
isn't what this code did before or after this change. I wrote a test to expose
the problem which should eventually reach Blink:
https://critic.hoppipolla.co.uk/r/1383

[acolwell GONE FROM CHROMIUM, 2014-04-25 15:04:44]

On 2014/04/25 12:16:04, philipj wrote:
> I think was an improvement, but just as an FYI the spec says "The task source
> for the tasks listed in this section is the DOM manipulation task source"
which
> isn't what this code did before or after this change. I wrote a test to expose
> the problem which should eventually reach Blink:
> https://critic.hoppipolla.co.uk/r/1383

Hmm.. It seems like we need to find a place to represent the "task source" so we
can fix this and the other media code to conform to this requirement.