Google just released ARC to run Android apps on PCs.
Does ARC support URL Schemes (e.g.; example://pass?var=hello) to launch and pass data from the Chrome browser to an ARC Android app?
No, ARC does not support this type of URI based intent. ARC is limited by what is possible on the Chrome App platform, and this functionality is not exposed to Chrome Apps currently.
The only way to launch your app based on an intent in ARC is to register an intent-filter for a MIME type or file pattern for the ACTION_SEND or ACTION_VIEW intent: