Save/Restore ALSA volume/mute fix
Save/Restore ALSA volume/mute fix

After getting volume and mute to restore (Issue 6118006), there was one case where it did not: if volume
was adjusted for the first time after a fresh install, it would not be remembered on next boot until
mute was pressed at least once.

BUG=chrome-os:10470
TEST=Manual, volume should be the same after adjusting after fresh install and rebooting

Review URL: http://codereview.chromium.org/6321014

git-svn-id: http://src.chromium.org/svn/trunk/src@72179 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5d6bd0f40d2f2b6e0102490e7c42122843913036
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