Add logging.h so that the scripts in NaCl will start working again.
Add logging.h so that the scripts in NaCl will start working again.

Review URL: http://codereview.chromium.org/3384021
humanai/ppapi,LinRaise/ppapi,Gitzk/ppapi,Gitzk/ppapi,LinRaise/ppapi,Iwan12/ppapi,iofcas/ppapi,jmnjmn/ppapi,melchi45/ppapi,macressler/ppapi,iofcas/ppapi,thecocce/ppapi,Gitzk/ppapi,lio972/ppapi,iofcas/ppapi,Gitzk/ppapi,kaijajan/ppapi,johnnnylm/ppapi,melchi45/ppapi,macressler/ppapi,Iwan12/ppapi,kaijajan/ppapi,LinRaise/ppapi,kaijajan/ppapi,iofcas/ppapi,lio972/ppapi,Iwan12/ppapi,Gitzk/ppapi,jmnjmn/ppapi,humanai/ppapi,jmnjmn/ppapi,lio972/ppapi,thecocce/ppapi,johnnnylm/ppapi,melchi45/ppapi,thecocce/ppapi,melchi45/ppapi,kaijajan/ppapi,Iwan12/ppapi,humanai/ppapi,humanai/ppapi,jmnjmn/ppapi,lio972/ppapi,johnnnylm/ppapi,LinRaise/ppapi,iofcas/ppapi,kaijajan/ppapi,humanai/ppapi,Iwan12/ppapi,thecocce/ppapi,macressler/ppapi,lio972/ppapi,melchi45/ppapi,LinRaise/ppapi,macressler/ppapi,johnnnylm/ppapi,jmnjmn/ppapi,macressler/ppapi,thecocce/ppapi,johnnnylm/ppapi