Fix a missing stub in viewer-test
Fix a missing stub in viewer-test

lakenen/viewer.js,denodster/viewer.js,box/viewer.js,denodster/viewer.js,lakenen/viewer.js,denodster/viewer.js,box/viewer.js,vdclouis/viewer.js,box/viewer.js,vdclouis/viewer.js,lakenen/viewer.js,vdclouis/viewer.js