Make texture domain a helper so that it can be incorporated into other effects.

Make texture domain a helper so that it can be incorporated into other effects.

Committed: http://code.google.com/p/skia/source/detail?r=12569

[jvanverth1, 2013-12-04 21:42:53]

LGTM. The only thing that bothers me is that GrTextureDomain is still being
contained in GrTextureDomainEffect.{cpp,h}, which makes it feel less of an
entity on its own, but that's a minor niggle.

[bsalomon, 2013-12-04 21:44:27]

On 2013/12/04 21:42:53, JimVV wrote:
> LGTM. The only thing that bothers me is that GrTextureDomain is still being
> contained in GrTextureDomainEffect.{cpp,h}, which makes it feel less of an
> entity on its own, but that's a minor niggle.

I just noticed that when I started trying to use it in another CL. I'll rename
the files and modify the gypi before committing.

[commit-bot: I haz the power, 2013-12-09 16:51:28]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/bsalomon@google.com/98893006/40001

[commit-bot: I haz the power, 2013-12-09 17:03:07]

Change committed as 12569