Fix findutils for new ppapi_simple
Fix findutils for new ppapi_simple

This requires removing ppapi_cpp from the link line and undefining
PSUserMainGet instead of PSUserCreateInstance.

BUG=none
R=sbc@chromium.org

Review URL: https://codereview.chromium.org/975463003

Schibum/naclports,yeyus/naclports,yeyus/naclports,Schibum/naclports,Schibum/naclports,yeyus/naclports,yeyus/naclports,yeyus/naclports,Schibum/naclports,Schibum/naclports,yeyus/naclports,Schibum/naclports