Make downloading and unzipping processes quieter.
Make downloading and unzipping processes quieter.

Pass -q to unzip so it doesn't list the archive contents.

Pass --progress-bar to curl only if stdout is a tty and pass
--silent if stderr is not a tty.

R=binji@chromium.org

Review URL: https://codereview.chromium.org/220113009

git-svn-id: 84b3587ce119b778414dcb50e18b7479aacf4f1d@1198 7dad1e8b-422e-d2af-fbf5-8013b78bd812

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