cros: Enable new cras audio handler by default

cros: Enable new cras audio handler by default

Add separate flag for audio device switcher menu, off by default

BUG=160311
TEST=Audio input/output/mute still works

[James Cook, 2013-04-29 23:41:16]

Steven, PTAL

https://codereview.chromium.org/14455012/diff/1/ash/test/ash_test_helper.cc
File ash/test/ash_test_helper.cc (right):

https://codereview.chromium.org/14455012/diff/1/ash/test/ash_test_helper.cc#n...
ash/test/ash_test_helper.cc:50: CommandLine::ForCurrentProcess()->AppendSwitch(
I talked to Oshima about this - we'll need to do something with a local_state /
PrefService to initialize CrasAudioHandler for regular ash_unittests.

[stevenjb, 2013-04-29 23:45:28]

lgtm

[James Cook, 2013-04-29 23:50:26]

+jennyz,dgreid just FYI

[James Cook, 2013-04-30 00:02:11]

On 2013/04/29 23:50:26, James Cook (Chromium) wrote:
> +jennyz,dgreid just FYI

With this on by default I see some input items on Pixel that don't make much
sense to the user:

INPUT
HDA Intel PCH: CA0132 What U Hear0,4
HDA Intel PCH: CA0132 Analog Mic-In2:0,2
Internal Mic

Until we sort out a way to suppress the first two items, I'm not going to land
this.

[jennyz, 2013-04-30 03:27:18]

lgtm

[jennyz, 2013-04-30 03:31:00]

On 2013/04/29 23:50:26, James Cook (Chromium) wrote:
> +jennyz,dgreid just FYI

dgreid@ and chihchung@, please take a look at this issue on pixel. I remembered
we had a similar issue for output device on lumpy and chihchung@ fixed it.

[dgreid, 2013-04-30 04:20:47]

On 2013/04/30 03:31:00, jennyz wrote:
> On 2013/04/29 23:50:26, James Cook (Chromium) wrote:
> > +jennyz,dgreid just FYI
> 
> dgreid@ and chihchung@, please take a look at this issue on pixel. I
remembered
> we had a similar issue for output device on lumpy and chihchung@ fixed it.

Lumpy had an extra device that didn't exist.  On Pixel these are real devices. 
They aren't something the user wants to see but the echo reference and keyboard
mic could be useful for a vc app.

[James Cook, 2013-04-30 17:43:24]

steven, PTAL - I added a separate flag for the UI, off by default

We still need to sort out the test failures

+rkc - FYI

[stevenjb, 2013-04-30 17:45:52]

LGTM

[jennyz, 2013-04-30 18:22:54]

ltgm. Thanks!

[James Cook, 2013-05-01 17:00:42]

On 2013/04/30 18:22:54, jennyz wrote:
> ltgm. Thanks!

Taken over by rkc@ at https://codereview.chromium.org/14678004/