Make DM play nice with the plan to split CPU and GPU work.

Make DM play nice with the plan to split CPU and GPU work.

--nocpu skips all CPU-bound work.
--nogpu skips all GPU-bound work.

/m/s/skia (dm) $ r dm --nogpu
ninja: Entering directory `out/Release'
[17/17] LINK dm
(294 GMs, 620 benches) x 4 configs, 245 tests
0 tasks left
71.46user 12.40system 0:04.52elapsed 1854%CPU (0avgtext+0avgdata 16828656maxresident)k
0inputs+0outputs (0major+3252811minor)pagefaults 0swaps

/m/s/skia (dm) $ r dm --nocpu
ninja: Entering directory `out/Release'
ninja: no work to do.
(294 GMs, 620 benches) x 4 configs, 245 tests
926 tasks leftUnsupported vertex-color/texture xfer mode.
Unsupported vertex-color/texture xfer mode.
0 tasks left
11.10user 2.38system 0:17.15elapsed 78%CPU (0avgtext+0avgdata 1310896maxresident)k
16inputs+4664outputs (0major+161322minor)pagefaults 0swaps


BUG=skia:2074
Committed: http://code.google.com/p/skia/source/detail?r=14001

[borenet, 2014-03-31 18:32:31]

LGTM   \o/
Maybe should be "BUG=skia:2074" ?

https://code.google.com/p/skia/issues/detail?id=2074 is "All tools should have
an option to run only CPU or GPU configs"

[mtklein, 2014-03-31 18:33:22]

On 2014/03/31 18:32:31, borenet wrote:
> LGTM   \o/
> Maybe should be "BUG=skia:2074" ?
> 
> https://code.google.com/p/skia/issues/detail?id=2074 is "All tools should have
> an option to run only CPU or GPU configs"

Done.  Didn't see that one at first. :)

[mtklein, 2014-03-31 18:34:02]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-03-31 18:34:19]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/mtklein@chromium.org/219403004/1

[mtklein, 2014-03-31 18:40:46]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-03-31 18:40:59]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-03-31 18:41:22]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/mtklein@chromium.org/219403004/1

[commit-bot: I haz the power, 2014-03-31 19:59:59]

Change committed as 14001