NaCl: Update revision in DEPS, 2d8b0bb -> b7793fe

NaCl: Update revision in DEPS, 2d8b0bb -> b7793fe

This pulls in the following Native Client changes:

c7ebcbc: (hidehiko@chromium.org) Non-SFI mode: Update headers for nacl_helper_nonsfi.
2312a39: (stichnot@chromium.org) PNaCl: Update Subzero revision in pnacl/COMPONENT_REVISIONS
e0ca648: (stichnot@chromium.org) Add Subzero to test scripts.
316f3e5: (dschuff@chromium.org) Build the IRT with nacl-clang for x86
70e1707: (dschuff@chromium.org) Revert of Build the IRT with nacl-clang for x86 (patchset #16 id:290001 of https://codereview.chromium.org/940993003/)
55bd3af: (jfb@chromium.org) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS
715ffb5: (mtrofin@chromium.org) Using LLVM FileCheck exclusively.
5995d5f: (sbc@chromium.org) Implement pthread_rwlock functions for NaCl newlib
f7533e5: (jfb@chromium.org) Update revision for PNaCl
b7793fe: (jfb@chromium.org) Test bswap with large offset

Changes: https://chromium.googlesource.com/native_client/src/native_client/+log/2d8b0bb6ffaf871fdc1f902d38778b2df8c6ff0d..b7793fedbadcf1c2c10c7f1a2ffb0f41342750ad

BUG=none
TEST=browser_tests and nacl_integration
CQ_EXTRA_TRYBOTS=tryserver.chromium.linux:linux_chromium_dbg_32_ng,linux_nacl_sdk_build
R= dschuff@chromium.org

Committed: https://crrev.com/5f791b3ca5d8f45fa0f3723e9998875378ac4e2e
Cr-Commit-Position: refs/heads/master@{#322417}

[Derek Schuff, 2015-03-26 15:58:44]

The CQ bit was checked by dschuff@chromium.org

[commit-bot: I haz the power, 2015-03-26 15:59:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1037953003/1

[commit-bot: I haz the power, 2015-03-26 15:59:06]

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

[commit-bot: I haz the power, 2015-03-26 15:59:07]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Derek Schuff, 2015-03-26 16:09:59]

The CQ bit was checked by dschuff@chromium.org

[Derek Schuff, 2015-03-26 16:10:00]

lgtm

[commit-bot: I haz the power, 2015-03-26 16:10:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1037953003/1

[commit-bot: I haz the power, 2015-03-26 17:44:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-26 17:45:52]

Patchset 1 (id:??) landed as
https://crrev.com/5f791b3ca5d8f45fa0f3723e9998875378ac4e2e
Cr-Commit-Position: refs/heads/master@{#322417}