rename blitrow::proc and add (uncalled) hook for colorproc16

rename blitrow::proc and add (uncalled) hook for colorproc16

BUG=skia:3302
Committed: https://skia.googlesource.com/skia/+/a7f11918d92621507f35b228a290f05dcaf0f4b6

[reed1, 2015-01-13 15:10:24]

reed@google.com changed reviewers:
+ djsollen@google.com, mlee@nvidia.com

[reed1, 2015-01-13 15:10:25]

suggested precursor for https://codereview.chromium.org/845293002/

[reed1, 2015-01-13 15:10:29]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-01-13 15:11:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/847443003/1

[commit-bot: I haz the power, 2015-01-13 15:11:20]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-01-13 21:11 UTC

[commit-bot: I haz the power, 2015-01-13 15:13:01]

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

[commit-bot: I haz the power, 2015-01-13 15:13:02]

Try jobs failed on following builders:
  Build-Ubuntu13.10-GCC4.8-Arm7-Debug-Android-Trybot on client.skia.compile
(http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu13.10-GC...)

[reed1, 2015-01-13 15:36:43]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-01-13 15:37:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/847443003/20001

[commit-bot: I haz the power, 2015-01-13 15:37:21]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-01-13 21:37 UTC

[commit-bot: I haz the power, 2015-01-13 15:39:31]

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

[commit-bot: I haz the power, 2015-01-13 15:39:32]

Try jobs failed on following builders:
  Build-Ubuntu13.10-GCC4.8-Arm7-Debug-Android-Trybot on client.skia.compile
(http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu13.10-GC...)

[reed1, 2015-01-13 16:21:28]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-01-13 16:22:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/847443003/40001

[commit-bot: I haz the power, 2015-01-13 16:22:31]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-01-13 22:22 UTC

[reed1, 2015-01-13 21:39:18]

ptal

[djsollen, 2015-01-13 21:49:52]

Lgtm, but instead of #if 0 in the blitter put the specialized version as a
comment at the end of each line.

[commit-bot: I haz the power, 2015-01-13 21:51:03]

Committed patchset #3 (id:40001) as
https://skia.googlesource.com/skia/+/a7f11918d92621507f35b228a290f05dcaf0f4b6