fix memory leak, remake Imageshader to use sk_sp

fix memory leak, remake Imageshader to use sk_sp

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2239723002

Committed: https://skia.googlesource.com/skia/+/6b2d7acecdd1a1e2b94d6c3b46697c8e9df3dbe5

[reed1, 2016-08-11 13:20:26]

Description was changed from

==========
fix memory leak, remake Imageshader to use sk_sp

BUG=skia:
==========

to

==========
fix memory leak, remake Imageshader to use sk_sp

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2239723002
==========

[reed1, 2016-08-11 13:20:43]

reed@google.com changed reviewers:
+ halcanary@google.com

[reed1, 2016-08-11 13:20:47]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2016-08-11 13:20:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[hal.canary, 2016-08-11 13:23:55]

lgtm

[commit-bot: I haz the power, 2016-08-11 13:42:29]

Description was changed from

==========
fix memory leak, remake Imageshader to use sk_sp

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2239723002
==========

to

==========
fix memory leak, remake Imageshader to use sk_sp

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2239723002

Committed:
https://skia.googlesource.com/skia/+/6b2d7acecdd1a1e2b94d6c3b46697c8e9df3dbe5
==========

[commit-bot: I haz the power, 2016-08-11 13:42:30]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/6b2d7acecdd1a1e2b94d6c3b46697c8e9df3dbe5