NaCl: Update revision in DEPS, 88ba651 -> d1999f5

NaCl: Update revision in DEPS, 88ba651 -> d1999f5

This pulls in the following Native Client changes:

26f5754: (sbc@chromium.org) Revert "Implement pthread_rwlock functions for NaCl newlib."
641a0eb: (dpranke@chromium.org) Update GN build files w/ cpu_arch -> current_cpu changes
7168ea5: (mtrofin@chromium.org) Support for debug builds for host binaries (e.g. llvm)
123e556: (dschuff@chromium.org) Update revision for PNaCl
d1999f5: (bradnelson@google.com) Reenabling crc32w.

BUG=none
TEST=browser_tests and nacl_integration
CQ_EXTRA_TRYBOTS=tryserver.chromium.linux:linux_chromium_dbg_32_ng,linux_arm_compile,linux_nacl_sdk_build

Committed: https://crrev.com/3794a7a029e698384d0e87c5913f26a071481b2c
Cr-Commit-Position: refs/heads/master@{#318055}

[Mark Seaborn, 2015-02-25 15:11:11]

mseaborn@chromium.org changed reviewers:
+ jfb@chromium.org

[JF, 2015-02-25 15:48:59]

lgtm (¬д¬。)

[Mark Seaborn, 2015-02-25 15:55:38]

The CQ bit was checked by mseaborn@chromium.org

[commit-bot: I haz the power, 2015-02-25 15:56:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/952893007/1

[commit-bot: I haz the power, 2015-02-25 16:15:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-25 16:15:48]

Patchset 1 (id:??) landed as
https://crrev.com/3794a7a029e698384d0e87c5913f26a071481b2c
Cr-Commit-Position: refs/heads/master@{#318055}

[Sam Clegg, 2015-02-25 16:57:56]

On 2015/02/25 16:15:48, I haz the power (commit-bot) wrote:
> Patchset 1 (id:??) landed as
> https://crrev.com/3794a7a029e698384d0e87c5913f26a071481b2c
> Cr-Commit-Position: refs/heads/master@{#318055}

Oops, looks like we didn't get the critical revision in this roll:
123e556 Update revision for PNaCl

[Sam Clegg, 2015-02-25 22:25:04]

On 2015/02/25 16:57:56, Sam Clegg wrote:
> On 2015/02/25 16:15:48, I haz the power (commit-bot) wrote:
> > Patchset 1 (id:??) landed as
> > https://crrev.com/3794a7a029e698384d0e87c5913f26a071481b2c
> > Cr-Commit-Position: refs/heads/master@{#318055}
> 
> Oops, looks like we didn't get the critical revision in this roll:
> 123e556 Update revision for PNaCl

Sorry.. I was parsing the commits as most recent first.. 123e556 is included
after all.