I have just tested the one on my Sitecore 8.0 Update 4 instance - it works pretty well!
For those who has never met this config before - SwitchMasterToWeb is a configuration patch file, that aims to be placed into App_Config\Include folder on content delivery server (CD) in order to remove references to master database, that should not present there by design.
core
/sitecore/system/tasks/schedules
true
sitecore_master_index
web
web
web
web
-
web
-
web
sitecore_marketing_asset_index_web
-
web
-
web
web