NaCl: Update revision in DEPS, r12444 -> r12465

NaCl: Update revision in DEPS, r12444 -> r12465

This pulls in the following Native Client changes:

r12445: (jvoung) Remove newlib header workaround for run_posix_memalign_test.
r12446: (sbc) Allow opening on char and block devices as well as regular files.
r12447: (mcgrathr) Remove unwind_trace test
r12448: (jfb) Mark iconv test as unbroken on NaCl x86
r12449: (mseaborn) PNaCl: Add script for testing Git changes (for LLVM etc.) via the trybots
r12450: (dschuff) Make toolchain_build friendlier for local PNaCl use.
r12451: (jfb) Build UTF-16LE and UCS-4LE for ARM newlib too
r12452: (jfb) Fix pnacl-ld's private library handling once more.
r12453: (dschuff) buildbot_pnacl_toolchain: don't make Windows bot red for new-style build failure
r12454: (jfb) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS
r12455: (eliben) Fix build.sh sync-sources and consistently name legacy-repo-sync option target.
r12456: (mseaborn) Add more C++ exception handling tests
r12457: (jvoung) Adjust nacl perf expectations to give margin to uncontended mutex lock.
r12458: (jfb) Update ARM toolchain, and mark iconv test as fixed on ARM
r12459: (phajdan.jr) GTTF: Add option for JSON machine-readable summary output to nacl_integration tests.
r12460: (sbc) Add rt/tst-aio8 to list of known glibc failures.
r12461: (jvoung) Add more margin to perf expectations for UncontendedMutexLock on win32 too.
r12462: (halyavin) Add validator test for F2 66.
r12463: (eliben) Pass -w option through to clang
r12464: (sbc) Add struct flock to newlib fcntl.h.
r12465: (sbc) Disable several glibc tests.

BUG=none
TEST=browser_tests and nacl_integration

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=238255

[bradn, 2013-12-02 18:34:05]

lgtm

[commit-bot: I haz the power, 2013-12-02 18:51:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mseaborn@chromium.org/93203002/1

[commit-bot: I haz the power, 2013-12-02 23:45:36]

Retried try job too often on win_rel for step(s) chrome_frame_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2013-12-02 23:56:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mseaborn@chromium.org/93203002/1

[commit-bot: I haz the power, 2013-12-03 00:54:49]

Change committed as 238255