Create new aliases related to extra sdk building, allowing us to build platform dependent and independent libs separately.
Create new aliases related to extra sdk building, allowing us to build
platform dependent and independent libs separately.

Review URL: http://codereview.chromium.org/3030045

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@2905 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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