Add a dbgprintf() that goes through __real_write.
Add a dbgprintf() that goes through __real_write.

Normal printf() deadlocks on the big lock of the KernelProxy when used inside
nacl-mounts.
Review URL: http://codereview.chromium.org/7867037

git-svn-id: 84b3587ce119b778414dcb50e18b7479aacf4f1d@435 7dad1e8b-422e-d2af-fbf5-8013b78bd812

adlr/naclports,dtkav/naclports,kosyak/naclports_samsung-smart-tv,binji/naclports,kosyak/naclports_samsung-smart-tv,Schibum/naclports,dtkav/naclports,yeyus/naclports,yeyus/naclports,binji/naclports,kuscsik/naclports,kosyak/naclports_samsung-smart-tv,clchiou/naclports,yeyus/naclports,dtkav/naclports,Schibum/naclports,Schibum/naclports,kosyak/naclports_samsung-smart-tv,adlr/naclports,clchiou/naclports,clchiou/naclports,binji/naclports,kuscsik/naclports,adlr/naclports,yeyus/naclports,kuscsik/naclports,adlr/naclports,Schibum/naclports,dtkav/naclports,kuscsik/naclports,Schibum/naclports,binji/naclports,yeyus/naclports,clchiou/naclports,kosyak/naclports_samsung-smart-tv,yeyus/naclports,Schibum/naclports,clchiou/naclports,dtkav/naclports,kuscsik/naclports,adlr/naclports,binji/naclports