NaCl: Update revision in DEPS, r8444 -> r8463

NaCl: Update revision in DEPS, r8444 -> r8463

This pulls in the following Native Client changes:

r8445: (khim) Further reduction of validator size
r8446: (khim) Shrink decoder-x86_{32,64}.c
r8447: (khim) Fix lock handling in some instructions
r8448: (robertm) PNaCl: Switch the unsandboxed linking of dynamic/shared images to gold
r8449: (robertm) Roll pnacl_llvm_testsuite_rev which will make more of the tests build.
r8450: (kschimpf) Make inline interface methods static. Also separate4 old and new actual
r8451: (kschimpf) Speed up test comparisons of actual vs baseline by 33%.
r8452: (robertm) Disable the new run_sock_test which is broken for pnacl
r8453: (robertm) Mark 3 more lvm-test-suite tests as passing
r8454: (mseaborn) Update chrome_rev in DEPS (but not chromebinaries_rev)
r8456: (dschuff) Allow translation of spec benchmarks on arm hw
r8457: (jvoung) Make pnacl library searcher check the filetype for sanity.
r8458: (bradchen) Test ragel decoder/validator with enuminst.
r8459: (mseaborn) Split sel_ldr_launcher.cc into _base.cc and _standalone.cc files
r8460: (dschuff) Modify -q flag of run.py to output nothing to stdout/stderr at all
r8461: (mseaborn) Update chrome_rev in DEPS (but not chromebinaries_rev)
r8463: (mseaborn) Remove sel_ldr_launcher_chrome.cc, which has been moved to the Chromium repo

BUG=none
TEST=nacl_integration

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=134752

[Nick Bray (chromium), 2012-05-01 17:47:05]

LGTM