fix linear gradient assert, by explicitly clamping

fix linear gradient assert, by explicitly clamping

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1556993003

Committed: https://skia.googlesource.com/skia/+/aeab8ea4d7492dc996fa72de7298de81f8deed93

[reed1, 2016-01-05 16:53:22]

Description was changed from

==========
fix linear gradient assert, by explicitly clamping

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

to

==========
fix linear gradient assert, by explicitly clamping

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[reed1, 2016-01-05 16:57:30]

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

[reed1, 2016-01-05 16:57:35]

The CQ bit was checked by reed@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-01-05 16:57:38]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1556993003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1556993003/20001

[commit-bot: I haz the power, 2016-01-05 17:14:03]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-05 17:14:04]

Dry run: This issue passed the CQ dry run.

[caryclark, 2016-01-05 17:40:18]

lgtm

[reed1, 2016-01-05 18:00:53]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2016-01-05 18:01:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1556993003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1556993003/20001

[commit-bot: I haz the power, 2016-01-05 18:01:40]

Description was changed from

==========
fix linear gradient assert, by explicitly clamping

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
fix linear gradient assert, by explicitly clamping

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...

Committed:
https://skia.googlesource.com/skia/+/aeab8ea4d7492dc996fa72de7298de81f8deed93
==========

[commit-bot: I haz the power, 2016-01-05 18:01:45]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/aeab8ea4d7492dc996fa72de7298de81f8deed93