Move RectBatch to GrRectBatch

Move RectBatch to GrRect

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/ad17cfc8c72515176a1b191767caac48e316b43a

[joshualitt, 2015-05-04 20:21:35]

joshualitt@google.com changed reviewers:
+ bsalomon@google.com, joshualitt@google.com, robertphillips@google.com

[joshualitt, 2015-05-04 20:21:35]

Mostly just a move.  I wanted to name it GrRect, but there was a conflict with
GrIRect16.

[robertphillips, 2015-05-05 14:58:00]

lgtm

[joshualitt, 2015-05-05 17:18:40]

The CQ bit was checked by joshualitt@google.com

[joshualitt, 2015-05-05 17:18:41]

The patchset sent to the CQ was uploaded after l-g-t-m from
robertphillips@google.com
Link to the patchset: https://codereview.chromium.org/1127713002/#ps80001
(title: "tweaks")

[commit-bot: I haz the power, 2015-05-05 17:19:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1127713002/80001

[commit-bot: I haz the power, 2015-05-05 17:20:49]

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

[commit-bot: I haz the power, 2015-05-05 17:20:50]

Try jobs failed on following builders:
  Build-Ubuntu-Clang-x86_64-Debug-Trybot on client.skia.compile (JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu-Clang-x...)

[joshualitt, 2015-05-05 17:32:22]

The CQ bit was checked by joshualitt@google.com

[joshualitt, 2015-05-05 17:32:23]

The patchset sent to the CQ was uploaded after l-g-t-m from
robertphillips@google.com
Link to the patchset: https://codereview.chromium.org/1127713002/#ps100001
(title: "more")

[commit-bot: I haz the power, 2015-05-05 17:32:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1127713002/100001

[commit-bot: I haz the power, 2015-05-05 17:46:02]

Committed patchset #6 (id:100001) as
https://skia.googlesource.com/skia/+/ad17cfc8c72515176a1b191767caac48e316b43a