NaCl: Update revision in DEPS, r8008 -> r8027

This pulls in the following Native Client changes:

r8009: (kschimpf) Change disassembled output for x86 new decoder to match xed, making it
r8010: (kschimpf) Remove assert that is no longer applicable.
r8011: (robertm) Undo hacks for qemu which worked around problems with sync primitives.
r8012: (robertm) Remove obsolete qemu patches.
r8013: (bradnelson) Set errorlevel=1 so fatal error in untarring actually raises.
r8014: (dschuff) Add test running support for tests generated as pexes.
r8015: (mseaborn) NaClDesc: Rename SendMsg/RecvMsg methods to LowLevelSendMsg/LowLevelRecvMsg
r8016: (jvoung) Add workarounds to get libelf building on Mac hosts, for pnacl.
r8017: (dschuff) Rename pnacl_stop_with_pexe to pnacl_generate_pexe
r8018: (jvoung) Make pnacl version visible from extension / move pnacl info to separate manifest.
r8019: (mseaborn) Provide a more extensible startup interface to Chromium
r8020: (mseaborn) Move trusted-crash tests into a common directory
r8021: (robertm) Adding a simple test for eh_return builtin.
r8022: (bsy) fix descriptor refcount leak.
r8023: (jvoung) Introduce ProgramNameForNmf() to replace all the local patterns
r8024: (bradnelson) Untar toolchain to a mkdtemp dir to avoid collisions with old failed untars.
r8025: (bradnelson) Adding validator regression tests.
r8026: (robertm) Improve the self documentation of the trusted toolchain creator sctipt.
r8027: (mseaborn) Fix linking of sel_main_chrome.c (broken by r8019)

BUG=none
TEST=nacl_integration

Review URL: https://chromiumcodereview.appspot.com/9702039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126783 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -8,7 +8,7 @@ vars = {
   "webkit_revision": "110733",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "69281",
-  "nacl_revision": "8008",
+  "nacl_revision": "8027",
   # After changing nacl_revision, run 'glient sync' and check native_client/DEPS
   # to update other nacl_*_revision's.
   "nacl_tools_revision": "7955",  # native_client/DEPS: tools_rev