Remove (almost) unused read/writeFunctionPtr API.

Remove (almost) unused read/writeFunctionPtr API.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1937053002

Committed: https://skia.googlesource.com/skia/+/18f13f3673c20fec220a1594b3174f9dcab35c5d

[Brian Osman, 2016-05-02 14:20:12]

Description was changed from

==========
Remove (almost) unused read/writeFunctionPtr API.

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

to

==========
Remove (almost) unused read/writeFunctionPtr API.

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

[Brian Osman, 2016-05-02 14:21:02]

Description was changed from

==========
Remove (almost) unused read/writeFunctionPtr API.

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

to

==========
Remove (almost) unused read/writeFunctionPtr API.

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

[Brian Osman, 2016-05-02 14:21:02]

brianosman@google.com changed reviewers:
+ mtklein@google.com, reed@google.com

[Brian Osman, 2016-05-02 14:21:07]

The CQ bit was checked by brianosman@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-05-02 14:21:13]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1937053002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1937053002/1

[Brian Osman, 2016-05-02 14:22:30]

More dead code. The ImageFilterMatrix test still passes - is there a preferred
way to clean up that file?

[commit-bot: I haz the power, 2016-05-02 14:23:04]

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

[commit-bot: I haz the power, 2016-05-02 14:23:05]

Dry run: Try jobs failed on following builders:
  skia_presubmit-Trybot on client.skia.fyi (JOB_FAILED,
http://build.chromium.org/p/client.skia.fyi/builders/skia_presubmit-Trybot/bu...)

[Brian Osman, 2016-05-02 14:26:20]

The CQ bit was checked by brianosman@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-05-02 14:26:23]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1937053002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1937053002/20001

[commit-bot: I haz the power, 2016-05-02 14:29:21]

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

[commit-bot: I haz the power, 2016-05-02 14:29:22]

Dry run: Try jobs failed on following builders:
  Build-Win-MSVC-x86-Debug-Trybot on client.skia.compile (JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Win-MSVC-x86-D...)

[reed1, 2016-05-02 14:40:48]

lgtm

[Brian Osman, 2016-05-02 14:50:05]

The CQ bit was checked by brianosman@google.com

[commit-bot: I haz the power, 2016-05-02 14:50:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1937053002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1937053002/20001

[commit-bot: I haz the power, 2016-05-02 14:51:10]

Description was changed from

==========
Remove (almost) unused read/writeFunctionPtr API.

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

to

==========
Remove (almost) unused read/writeFunctionPtr API.

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/+/18f13f3673c20fec220a1594b3174f9dcab35c5d
==========

[commit-bot: I haz the power, 2016-05-02 14:51:11]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/18f13f3673c20fec220a1594b3174f9dcab35c5d