Update PnaCl UPSTREAM_REV to 4796bf673eff This brings in http://chromiumcodereview.appspot.com/10540062/
Update PnaCl UPSTREAM_REV to 4796bf673eff
This brings in http://chromiumcodereview.appspot.com/10540062/

BUG=none
TEST=pnacl browser tests

Review URL: https://chromiumcodereview.appspot.com/10537066

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@8851 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client