enable the flag enable-offline-auto-reload via extension -

hi enable flag enable-offline-auto-reload via extension. can't find api though. when set via (chrome://flags) following json added local state file:

"browser":{"enabled_labs_experiments":["enable-offline-auto-reload@1"]} 

when attempt use in manifest, browser tag not available , error "unrecognized manifest key". know api this? can guide me in direction please?

you cannot control command line flags extensions. there no api that.