Provide real GPUSupport to ash for Chrome

Provide real GPUSupport to ash for Chrome

A recent refactor to extract src/content dependencies from ash broke
GPU feature detection for panel fitting on Chrome OS. In particular the
OutputConfigurator was set up using a stub GPUSupport object.

Fix injection of the GPUSupport object -- move its creation to the
ash::ShellDelegate interface.

BUG=chrome-os-partner:25204, chrome-os-partner:24868
TEST=existing ash_unittests

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=248226

[James Cook, 2014-01-31 01:37:42]

skuhne, PTAL - Basically I'm just moving creation of the GPUSupport object to
the ShellDelegate interface so we can build the right one inside the ash::Shell
constructor.  Otherwise OutputConfigurator setup uses the wrong one.

marcheu, FYI

[marcheu, 2014-01-31 02:16:40]

On 2014/01/31 01:37:42, James Cook wrote:
> skuhne, PTAL - Basically I'm just moving creation of the GPUSupport object to
> the ShellDelegate interface so we can build the right one inside the
ash::Shell
> constructor.  Otherwise OutputConfigurator setup uses the wrong one.
> 
> marcheu, FYI

Works great, thanks James!

[Mr4D (OOO till 08-26), 2014-01-31 04:28:44]

lgtm

[James Cook, 2014-01-31 16:30:12]

The CQ bit was checked by jamescook@chromium.org

[commit-bot: I haz the power, 2014-01-31 16:30:33]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamescook@chromium.org/132173006/130001

[commit-bot: I haz the power, 2014-01-31 18:20:43]

Change committed as 248226

[commit-bot: I haz the power, 2014-01-31 18:20:44]

CQ bit was unchecked on CL. Ignoring.

[commit-bot: I haz the power, 2014-01-31 18:20:47]

CQ bit was unchecked on CL. Ignoring.