Enable dual source blending for Vulkan

Enable dual source blending for Vulkan

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1837213003

Committed: https://skia.googlesource.com/skia/+/d632bb4dfc184d7c523bb436940c182ed42551ea

[egdaniel, 2016-03-29 19:59:23]

Description was changed from

==========
Enable dual source blending for Vulkan

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

to

==========
Enable dual source blending for Vulkan

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

[egdaniel, 2016-03-29 20:02:16]

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

[jvanverth1, 2016-03-30 18:46:56]

lgtm

[egdaniel, 2016-03-30 18:49:42]

The CQ bit was checked by egdaniel@google.com

[commit-bot: I haz the power, 2016-03-30 18:49:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1837213003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1837213003/20001

[commit-bot: I haz the power, 2016-03-30 19:06:50]

Description was changed from

==========
Enable dual source blending for Vulkan

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

to

==========
Enable dual source blending for Vulkan

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/+/d632bb4dfc184d7c523bb436940c182ed42551ea
==========

[commit-bot: I haz the power, 2016-03-30 19:06:51]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/d632bb4dfc184d7c523bb436940c182ed42551ea