Roll src/third_party/skia/ d921dbb9b..789e25ea7 (4 commits).

Roll src/third_party/skia/ d921dbb9b..789e25ea7 (4 commits).

https://chromium.googlesource.com/skia.git/+log/d921dbb9b883..789e25ea7d0e

$ git log d921dbb9b..789e25ea7 --date=short --no-merges --format='%ad %ae %s'
2016-09-30 bsalomon Add gn option to set the location of the Vulkan SDK
2016-09-30 fmalita SkRWBuffer: preallocate 'initialCapacity'
2016-09-30 mtklein Clean up public.bzl after G3-side CL.
2016-09-30 brianosman Helper functions to do SkColor -> GrColor4f

BUG=651698
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=fmalita@google.com

Committed: https://crrev.com/f6760c777c4dacf3b432fc5471c1de87d5cc8579
Cr-Commit-Position: refs/heads/master@{#422223}

[skia-deps-roller, 2016-09-30 18:51:09]

The CQ bit was checked by skia-deps-roller@chromium.org

[commit-bot: I haz the power, 2016-09-30 18:51:36]

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

[commit-bot: I haz the power, 2016-09-30 21:18:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-30 21:21:43]

Description was changed from

==========
Roll src/third_party/skia/ d921dbb9b..789e25ea7 (4 commits).

https://chromium.googlesource.com/skia.git/+log/d921dbb9b883..789e25ea7d0e

$ git log d921dbb9b..789e25ea7 --date=short --no-merges --format='%ad %ae %s'
2016-09-30 bsalomon Add gn option to set the location of the Vulkan SDK
2016-09-30 fmalita SkRWBuffer: preallocate 'initialCapacity'
2016-09-30 mtklein Clean up public.bzl after G3-side CL.
2016-09-30 brianosman Helper functions to do SkColor -> GrColor4f

BUG=651698


CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=fmalita@google.com
==========

to

==========
Roll src/third_party/skia/ d921dbb9b..789e25ea7 (4 commits).

https://chromium.googlesource.com/skia.git/+log/d921dbb9b883..789e25ea7d0e

$ git log d921dbb9b..789e25ea7 --date=short --no-merges --format='%ad %ae %s'
2016-09-30 bsalomon Add gn option to set the location of the Vulkan SDK
2016-09-30 fmalita SkRWBuffer: preallocate 'initialCapacity'
2016-09-30 mtklein Clean up public.bzl after G3-side CL.
2016-09-30 brianosman Helper functions to do SkColor -> GrColor4f

BUG=651698

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=fmalita@google.com

Committed: https://crrev.com/f6760c777c4dacf3b432fc5471c1de87d5cc8579
Cr-Commit-Position: refs/heads/master@{#422223}
==========

[commit-bot: I haz the power, 2016-09-30 21:21:43]

Patchset 1 (id:??) landed as
https://crrev.com/f6760c777c4dacf3b432fc5471c1de87d5cc8579
Cr-Commit-Position: refs/heads/master@{#422223}