move SkDither.h to private, remove unused shadeSpan16

move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method was never called.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1558933002

TBR=

Committed: https://skia.googlesource.com/skia/+/03f896810677bf648d110123ebaf6a8a7af2a667

[reed2, 2016-01-04 03:25:06]

Description was changed from

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

to

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

[reed2, 2016-01-04 03:25:24]

The CQ bit was checked by reed@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-01-04 03:25:31]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1558933002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1558933002/1

[reed2, 2016-01-04 03:30:26]

reed@chromium.org changed reviewers:
+ reed@google.com

[commit-bot: I haz the power, 2016-01-04 03:39:50]

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

[commit-bot: I haz the power, 2016-01-04 03:39:51]

Dry run: This issue passed the CQ dry run.

[reed2, 2016-01-04 13:05:04]

Description was changed from

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

to

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

TBR=
==========

[reed2, 2016-01-04 13:05:10]

The CQ bit was checked by reed@chromium.org

[commit-bot: I haz the power, 2016-01-04 13:05:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1558933002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1558933002/1

[commit-bot: I haz the power, 2016-01-04 13:06:10]

Description was changed from

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

TBR=
==========

to

==========
move SkDither.h to private, remove unused shadeSpan16

Since perlin noise shader never set the kHasShad16 flag, its shadeSpan16 method
was never called.

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

TBR=

Committed:
https://skia.googlesource.com/skia/+/03f896810677bf648d110123ebaf6a8a7af2a667
==========

[commit-bot: I haz the power, 2016-01-04 13:06:11]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/03f896810677bf648d110123ebaf6a8a7af2a667