NaCl: Update revision in DEPS, r13251 -> r13261

NaCl: Update revision in DEPS, r13251 -> r13261

This pulls in the following Native Client changes:

r13252: (sehr) Make Android scons build align better with gyp android build
r13253: (mseaborn) Add test for PNaCl setjmp() bug in which stack slots get reused wrongly
r13254: (jvoung) Remove -sfi-load, etc. from the pnacl-translate driver (always set for nacl)
r13255: (dyen) Added a way for toolchain_build to update known git mirrors.
r13256: (hamaji) Non-SFI Mode: Build newlib-based Linux static executables for ARM
r13257: (mcgrathr) Include address in ReserveBottomPages failure message
r13258: (sbc) Add {TOOLCHAIN}/usr/local/lib to pnacl library search path.
r13259: (sehr) Fix stlport issues in scons build
r13260: (mcgrathr) Accept mmap EINVAL failure for any <64k page, not just 0
r13261: (jvoung) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS

BUG=none
TEST=browser_tests and nacl_integration

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=274333

[bradn, 2014-06-02 17:38:45]

lgtm

[Mark Seaborn, 2014-06-02 20:47:48]

The CQ bit was checked by mseaborn@chromium.org

[commit-bot: I haz the power, 2014-06-02 20:49:54]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mseaborn@chromium.org/304323011/1

[commit-bot: I haz the power, 2014-06-02 21:15:59]

Change committed as 274333