NaCl: Update revision in DEPS, r6736 -> r6743
NaCl: Update revision in DEPS, r6736 -> r6743

This pulls in the following Native Client changes:

r6737: (khim) Partial rollback of r6734.
r6738: (mcgrathr) Add gyp/scons configury and buildbot option to build trusted code with Clang
r6739: (jvoung) Update llvm/llvm-gcc revs to pull in trivial merge
r6740: (mcgrathr) Roll back gtest_rev 364
r6741: (mcgrathr) Make Mac clang bot 32-bit
r6742: (kschimpf) Speed up x86-64 validator by inlining buffer segment reads. Speeds up x86-64 validator by approximately 11%.
r6743: (kschimpf) Speed up x86-64 validator by inlining heavily called routines. Speeds up

BUG=none
TEST=nacl_integration


Review URL: http://codereview.chromium.org/7977028

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@102194 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,adobe/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,ropik/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,gavinp/chromium