NaCl: Update revision in DEPS, r7813 -> r7851
NaCl: Update revision in DEPS, r7813 -> r7851

This pulls in the following Native Client changes:

r7814: (jvoung) Remove glibc-skipping-goo from pnacl extension packer, now that
r7815: (sehr) Update toolchain newlib revision to get changes for clock_monotonic, etc.
r7816: (pdox) PNaCl driver cleanup/enhancements:
r7817: (dschuff) Buildbot selector change to run main waterfall tests on pandaboard
r7818: (pdox) * Update UPSTREAM_REV to pull in: http://codereview.chromium.org/9416047/
r7819: (pdox) Fix mistake in last CL (r7818).
r7820: (pdox) pnacl-translate corner case fix: only get the bitcode type and metadata if there is a bitcode file.
r7821: (pdox) Roll toolchain DEPS to 7819.
r7823: (pasko) validator_ragel: disallow some legacy instructions
r7824: (pasko) validator_ragel: Unify validator test diagnostics.
r7825: (bradnelson) Adding untrusted crash dump / stack trace tests.
r7826: (khim) Allow all REX prefixes even if bits are not actually used
r7827: (dschuff) Fix panda bot name to match buildbot triggering pattern
r7828: (bradnelson) Renaming json string writer and eliminating assign in condition.
r7829: (bradnelson) Adding do nothing annotator stubs for now validator bots.
r7830: (jvoung) Modify pnacl-nmf generator to say "pnacl-translate" when translation is needed.  This should not break things yet, even though we haven't rolled chrome, since we are currently only using the NMF generator on glibc browser tests, which are actually disabled.
r7831: (sehr) Remove the now useless experimental JS flag from the browser tester.
r7832: (mseaborn) Syscalls: Deduplicate some syscall setup code
r7833: (mseaborn) Move NaClSignalHandlerInit()'s test crash into a separate function
r7834: (mseaborn) Remove the unused global lock nacl_thread_mu
r7835: (pdox) Switch to using the LLVM gold plugin as a fully linked-in object rather than DSO.
r7836: (pdox) Fix PNaCl windows bot name in buildbot_selector.py
r7837: (bsy) a couple of simple clock_get{res,time} tests.
r7838: (sehr) Fix overlooked incorrect method specification in SRPC server declarations.
r7839: (jvoung) Remove ppapi_example_font from nacl since it was disabled in chrome, as part of https://chromiumcodereview.appspot.com/9360045/
r7840: (pdox) Fix PNaCl Mac bot by doing -L<dir> instead of -L <dir>.
r7841: (pdox) Pull librt.so from GlibC into PNaCl's build.
r7842: (pdox) In llvm-install-plugin(), use the full path to the LLVM libraries instead of -l.
r7843: (pdox) 'which' is unnecessary, since the shell already searches PATH.
r7844: (pdox) PNaCl: Update UPSTREAM_REV to activate:
r7845: (pdox) * redirect.bat: Remove fixed-location PATH hack. Instead, the driver now expects "python" to be in the %PATH%.
r7846: (pdox) Make the pnacl_irt_shim build Windows friendly.
r7847: (pasko) validator_ragel: some fly-by .def comment fixes
r7848: (khim) Don't allow modifications of %bp/%sp/%bpl/%spl
r7849: (mseaborn) Enable inbrowser_test_runner in more cases
r7850: (mseaborn) Exception handling: Test exceptions on a non-main thread
r7851: (khim) Fix %ah/%spl mixup

BUG=none
TEST=nacl_integration

Review URL: https://chromiumcodereview.appspot.com/9430004

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@122854 0039d316-1c4b-4281-b951-d872f2087c98

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