Remove use of GrEffectRef from draw state and below.

Remove use of GrEffectRef from draw state and below.

Committed: https://skia.googlesource.com/skia/+/f99f884cd82528684779e40413f1ceaf277dad2d

[bsalomon, 2014-07-07 18:30:44]

After this change we will grab the GrEffect out of the GrEffectRef when an
effect is added to the GrDrawState. All subsequent stages of the pipe then use
GrEffect.

[robertphillips, 2014-07-07 18:35:10]

lgtm

[bsalomon, 2014-07-07 18:37:39]

The CQ bit was checked by bsalomon@google.com

[bsalomon, 2014-07-07 18:38:28]

On 2014/07/07 18:30:44, bsalomon wrote:
> After this change we will grab the GrEffect out of the GrEffectRef when an
> effect is added to the GrDrawState. All subsequent stages of the pipe then use
> GrEffect.

Just a note: This comment isn't quite right. GrDrawState is still holding an
EffectRef (via GrEffectStage), but it only hands out GrEffect*.

[commit-bot: I haz the power, 2014-07-07 18:38:48]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/bsalomon@google.com/372773002/1

[commit-bot: I haz the power, 2014-07-07 18:54:28]

Change committed as f99f884cd82528684779e40413f1ceaf277dad2d