PNaCl: Temporarily up the toolchain size limit
PNaCl: Temporarily up the toolchain size limit

The Mac build is pushing up against the limit. (It is not clear why, Mac binaries may be larger in general)
Review URL: http://codereview.chromium.org/6992083

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@5448 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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