Some simplifications of GrShape reductions/canonicalizations

Some simplifications of GrShape reductions/canonicalizations
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2064113004

Committed: https://skia.googlesource.com/skia/+/1b28c1adc1e156831d5332546e942b63fd29075b

[bsalomon, 2016-06-15 17:17:48]

Description was changed from

==========
Some simplifications of GrShape reductions/canonicalizations
==========

to

==========
Some simplifications of GrShape reductions/canonicalizations
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2064113004
==========

[bsalomon, 2016-06-15 17:21:06]

bsalomon@google.com changed reviewers:
+ egdaniel@google.com

[bsalomon, 2016-06-15 17:21:07]

The main thing here is to use an intermediate GrShape when applying reductions
between PE and strokeRec application.

This in turn allows the implementation of path simplification to be moved from a
helper static function to a non-static member function.

The rewrite caused an additional canonicalization of SkRRect start position
after path effect application to occur which the test code had to adapt to
handle.

[bsalomon, 2016-06-20 17:23:57]

ping

[egdaniel, 2016-06-20 18:57:29]

lgtm

[bsalomon, 2016-06-20 19:12:11]

The CQ bit was checked by bsalomon@google.com

[commit-bot: I haz the power, 2016-06-20 19:12:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2064113004/1

[commit-bot: I haz the power, 2016-06-20 19:28:21]

Description was changed from

==========
Some simplifications of GrShape reductions/canonicalizations
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2064113004
==========

to

==========
Some simplifications of GrShape reductions/canonicalizations
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2064113004

Committed:
https://skia.googlesource.com/skia/+/1b28c1adc1e156831d5332546e942b63fd29075b
==========

[commit-bot: I haz the power, 2016-06-20 19:28:22]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/1b28c1adc1e156831d5332546e942b63fd29075b