Remove DEPRECATED_beginRecording().

Remove DEPRECATED_beginRecording().

This removes:
  1) ability to record old pictures with SkPictureRecorder;
  2) a couple tests specific to the old backend.

The functionality of DEPRECATED_beginRecording() now lives in
(private) SkPicture::Backport(), which is the only place we 
need it now.

BUG=skia:
TBR=reed@google.com

Committed: https://skia.googlesource.com/skia/+/8e12656096fceeed8b3cc4284d57dea04893b455

[mtklein, 2014-10-01 14:38:17]

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

[robertphillips, 2014-10-01 14:50:58]

lgtm

[mtklein, 2014-10-01 14:53:40]

Forgot to mention: needs an include/ stamp to remove public API.

[reed1, 2014-10-01 14:56:14]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2014-10-01 14:56:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/618303002/80001

[commit-bot: I haz the power, 2014-10-01 15:10:59]

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

[commit-bot: I haz the power, 2014-10-01 15:11:00]

Try jobs failed on following builders:
  Test-Ubuntu13.10-GCE-NoGPU-x86_64-Debug-Trybot on tryserver.skia
(http://108.170.220.120:10117/builders/Test-Ubuntu13.10-GCE-NoGPU-x86_64-Debug...)

[mtklein, 2014-10-01 15:20:04]

PictureRecordBench.cpp was exploiting some undefined behavior, calling
endRecording() before calling beginRecording().  Fixed that up.  PTAL.

[mtklein, 2014-10-01 15:20:15]

The CQ bit was checked by mtklein@google.com

[mtklein, 2014-10-01 15:20:28]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-10-01 15:20:34]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-10-01 15:21:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/618303002/100001

[mtklein, 2014-10-01 15:51:04]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-10-01 15:51:14]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-10-01 15:51:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/618303002/100001

[robertphillips, 2014-10-01 16:11:49]

lgtm on new patch

[mtklein, 2014-10-01 16:24:21]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2014-10-01 16:24:25]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-10-01 16:24:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/618303002/100001

[commit-bot: I haz the power, 2014-10-01 16:29:43]

Committed patchset #6 (id:100001) as 8e12656096fceeed8b3cc4284d57dea04893b455