SConstruct fix for OS X 10.8 and newer which deprecated and removed older OS X SDKs.
SConstruct fix for OS X 10.8 and newer which deprecated and removed older OS X SDKs.

BUG=
TEST=build

Review URL: https://chromiumcodereview.appspot.com/10825232

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@9401 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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