Strip old backend recording down to essentials

Strip old backend recording down to essentials

Feature-wise, this removes:
  1) BBH support;
  2) peephole optimizations;
  3) record-time text op specializations;
  4) the guarantee that SkPaints are flattened.

This deletes the optimizations GM, which only exists to test the peepholes of
the old backend.  SkRecord optimizations are unit tested, and if that ever fails we
can think about adding another GM like this, but they're different enough we'd
want to start from scratch anyway.

We need to keep the code that plays back the specialized text ops around for
a while for compatibility with existing .SKPs that have those ops recorded.

BUG=skia:

CQ_EXTRA_TRYBOTS=tryserver.skia:Canary-Chrome-Ubuntu13.10-Ninja-x86_64-ToT-Trybot

Committed: https://skia.googlesource.com/skia/+/46616af01b412ea984a516fda1ed8ec08e689f29

[mtklein, 2014-09-30 18:32:43]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-09-30 18:33:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/617953002/60001

[mtklein, 2014-09-30 18:35:30]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-09-30 19:47:27]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-09-30 19:47:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/617953002/140001

[mtklein, 2014-09-30 19:48:32]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-09-30 19:49:27]

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

[mtklein, 2014-09-30 19:49:28]

No public API changes, but needs an include/ stamp.

[mtklein, 2014-09-30 19:54:31]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-09-30 19:55:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/617953002/160001

[mtklein, 2014-09-30 19:56:05]

The CQ bit was unchecked by mtklein@google.com

[robertphillips, 2014-09-30 20:03:28]

lgtm

[reed1, 2014-09-30 20:11:33]

lgtm

[mtklein, 2014-09-30 20:11:53]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-09-30 20:12:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/617953002/160001

[commit-bot: I haz the power, 2014-09-30 21:47:15]

Committed patchset #9 (id:160001) as 46616af01b412ea984a516fda1ed8ec08e689f29