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

Review URL: https://codereview.chromium.org/93203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238255 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -24,7 +24,7 @@ vars = {
   "chromiumos_git": "https://chromium.googlesource.com/chromiumos",
   "skia_git": "https://skia.googlesource.com",
   "swig_revision": "230490",
-  "nacl_revision": "12444",
+  "nacl_revision": "12465",
   # After changing nacl_revision, run 'glient sync' and check native_client/DEPS
   # to update other nacl_*_revision's.
   "nacl_tools_revision": "12289",  # native_client/DEPS: tools_rev