Revert 168954 - Tweak session restore ifdef to be chromeos specific.

Breaking SessionServiceTest.RestoreApp unit_tests on aura build.

BUG=none
TEST=none
R=davemoore@chromium.org
TBR=davemoore@chromium.org


Review URL: https://chromiumcodereview.appspot.com/11421020

TBR=sky@chromium.org
Review URL: https://codereview.chromium.org/11415091

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168959 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed