Port SkTextureCompression opts to SkOpts

Port SkTextureCompression opts to SkOpts

Pretty vanilla translation.  I cleaned up who calls whom a little.
Used to be utils -> opts -> utils, now it's just utils -> opts.

I may follow up with a pass over the NEON code for readability
and to clean up dead code.

This turns on NEON A8->R11EAC conversion for ARMv8.
Unit tests which now hit the NEON code still pass.
I can't find any related bench.

BUG=skia:4117
Committed: https://skia.googlesource.com/skia/+/b6394746ff546a9c60d68e3be162cb38feffa803

[mtklein_C, 2015-08-06 14:41:57]

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

[commit-bot: I haz the power, 2015-08-06 14:42:06]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1273103002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1273103002/40001

[mtklein_C, 2015-08-06 14:49:24]

mtklein@chromium.org changed reviewers:
+ djsollen@google.com

[commit-bot: I haz the power, 2015-08-06 14:49:24]

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

[commit-bot: I haz the power, 2015-08-06 14:49:26]

Dry run: This issue passed the CQ dry run.

[djsollen, 2015-08-06 14:59:41]

djsollen@google.com changed reviewers:
+ djsollen@google.com

[djsollen, 2015-08-06 14:59:42]

lgtm with one nit

https://codereview.chromium.org/1273103002/diff/40001/src/core/SkOpts.h
File src/core/SkOpts.h (right):

https://codereview.chromium.org/1273103002/diff/40001/src/core/SkOpts.h#newco...
src/core/SkOpts.h:11: #include "../utils/SkTextureCompressor.h"
utils is already in the include path in core.gyp so no need to qualify the path.

[mtklein_C, 2015-08-06 15:08:34]

https://codereview.chromium.org/1273103002/diff/40001/src/core/SkOpts.h
File src/core/SkOpts.h (right):

https://codereview.chromium.org/1273103002/diff/40001/src/core/SkOpts.h#newco...
src/core/SkOpts.h:11: #include "../utils/SkTextureCompressor.h"
On 2015/08/06 14:59:42, djsollen wrote:
> utils is already in the include path in core.gyp so no need to qualify the
path.

Done.  Note the changes to opts.gyp.  This is safe only because Chrome's GYPs
and GNs already put src/utils on the include path.  We got lucky.

[mtklein_C, 2015-08-06 15:08:45]

The CQ bit was checked by mtklein@chromium.org

[mtklein_C, 2015-08-06 15:08:45]

The patchset sent to the CQ was uploaded after l-g-t-m from djsollen@google.com
Link to the patchset: https://codereview.chromium.org/1273103002/#ps60001
(title: "update include_dirs")

[commit-bot: I haz the power, 2015-08-06 15:08:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1273103002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1273103002/60001

[commit-bot: I haz the power, 2015-08-06 15:17:20]

Committed patchset #4 (id:60001) as
https://skia.googlesource.com/skia/+/b6394746ff546a9c60d68e3be162cb38feffa803