Fix vulkan dual source blending

Fix vulkan dual source blending

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1856283003

Committed: https://skia.googlesource.com/skia/+/3a15fd4a9a019dc781368c26499ff899c2f03e3f

[egdaniel, 2016-04-05 14:10:19]

Description was changed from

==========
Fix vulkan dual source blending

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

to

==========
Fix vulkan dual source blending

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

[egdaniel, 2016-04-05 14:10:52]

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

[jvanverth1, 2016-04-05 16:16:22]

lgtm

[egdaniel, 2016-04-05 17:42:14]

The CQ bit was checked by egdaniel@google.com

[commit-bot: I haz the power, 2016-04-05 17:42:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1856283003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1856283003/1

[commit-bot: I haz the power, 2016-04-05 18:00:31]

Description was changed from

==========
Fix vulkan dual source blending

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

to

==========
Fix vulkan dual source blending

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/+/3a15fd4a9a019dc781368c26499ff899c2f03e3f
==========

[commit-bot: I haz the power, 2016-04-05 18:00:32]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/3a15fd4a9a019dc781368c26499ff899c2f03e3f