Send kStopMark from AudioOutputController to stop AudioThread in renderer

Send kStopMark from AudioOutputController to stop AudioThread in renderer

This is an M18-specific hack in the same vein as kPauseMark that will force the
AudioThread to stop listening on the socket for new values. There is no chance
that the socket will be in the middle of a read or write, so it should Close()
successfully without hanging.

BUG=121141
TEST=NONE

[vrk (LEFT CHROMIUM), 2012-04-11 16:37:52]

This should fix things, but since I cannot repro this is untested!

[tommi (sloooow) - chröme, 2012-04-11 16:48:10]

lgtm!  thanks for working on this :)

[scherkus (not reviewing), 2012-04-11 20:18:18]

cool!

I think the only remaining task is to figure out a way to verify the fix locally

[vrk (LEFT CHROMIUM), 2012-04-12 17:38:39]

Closing CL -- won't be committing this!

Also if you're curious, the hacky code above didn't work because there was some
additional weirdness going on with IPC and closing the stream! I didn't look
into it too closely but my sense was fixing the IPC stuff with hacks would be a
much trickier/riskier change -- glad we are going the route of rolling forward
instead :)

[tommi (sloooow) - chröme, 2012-04-12 17:53:54]

great.  thanks for the update.

On Thu, Apr 12, 2012 at 7:38 PM, <vrk@chromium.org> wrote:

> Closing CL -- won't be committing this!
>
> Also if you're curious, the hacky code above didn't work because there was
> some
> additional weirdness going on with IPC and closing the stream! I didn't
> look
> into it too closely but my sense was fixing the IPC stuff with hacks would
> be a
> much trickier/riskier change -- glad we are going the route of rolling
> forward
> instead :)
>
>
https://chromiumcodereview.**appspot.com/10054011/<https://chromiumcodereview...
>