Update chrome_rev in DEPS
Update chrome_rev in DEPS

Pull in Chromium LKGR and related dependencies to match.  This brings in a
new Clang that is hoped to fix the Mac coverage build.  But it's also just
a tracking update that should be done regularly.

BUG= none
TEST= trybots
R=bradnelson@google.com, eliben@chromium.org

Review URL: https://codereview.chromium.org/27384002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12262 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client