[Ozone-Gbm] Explicitly crash if trying software rendering on GBM

[Ozone-Gbm] Explicitly crash if trying software rendering on GBM

Software rendering isn't supported on the GBM platform. Rather than
allow callers to crash due to nullptr accesses, crash explicitly so we
get more meaningfull crash reports.

BUG=461396
Committed: https://crrev.com/3e658b23710143f92286bca571d883a1f161c15d
Cr-Commit-Position: refs/heads/master@{#318728}

[dnicoara, 2015-02-28 00:38:52]

dnicoara@chromium.org changed reviewers:
+ spang@chromium.org

[dnicoara, 2015-02-28 00:38:52]

PTAL

[spang, 2015-02-28 00:44:45]

lgtm

https://codereview.chromium.org/958403004/diff/1/ui/ozone/platform/dri/gbm_su...
File ui/ozone/platform/dri/gbm_surface_factory.h (right):

https://codereview.chromium.org/958403004/diff/1/ui/ozone/platform/dri/gbm_su...
ui/ozone/platform/dri/gbm_surface_factory.h:33: gfx::AcceleratedWidget widget);
override;

[dnicoara, 2015-03-02 16:18:23]

https://codereview.chromium.org/958403004/diff/1/ui/ozone/platform/dri/gbm_su...
File ui/ozone/platform/dri/gbm_surface_factory.h (right):

https://codereview.chromium.org/958403004/diff/1/ui/ozone/platform/dri/gbm_su...
ui/ozone/platform/dri/gbm_surface_factory.h:33: gfx::AcceleratedWidget widget);
On 2015/02/28 00:44:45, spang wrote:
> override;

Done.

[dnicoara, 2015-03-02 18:22:23]

The CQ bit was checked by dnicoara@chromium.org

[dnicoara, 2015-03-02 18:22:24]

The patchset sent to the CQ was uploaded after l-g-t-m from spang@chromium.org
Link to the patchset: https://codereview.chromium.org/958403004/#ps20001 (title:
"override")

[commit-bot: I haz the power, 2015-03-02 18:23:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/958403004/20001

[commit-bot: I haz the power, 2015-03-02 18:56:06]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-02 18:56:48]

Patchset 2 (id:??) landed as
https://crrev.com/3e658b23710143f92286bca571d883a1f161c15d
Cr-Commit-Position: refs/heads/master@{#318728}