Fixed memleak in alsa_output.cc TBR=ajwong@chromium.org
Fixed memleak in alsa_output.cc
TBR=ajwong@chromium.org

git-svn-id: http://src.chromium.org/svn/trunk/src@47375 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: d31085b57aaa51f9c256894c73b92580fd006432
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser