That's just plain wrong. They're web APIs that are maintained by the W3C (in various states) that Firefox doesn't support yet. That doesn't make them "Chrome APIs" just as a W3C spec that only Firefox supports isn't a "Firefox API".
Clipboard API: https://w3c.github.io/clipboard-apis/
Battery API: https://w3c.github.io/battery/
Performance: https://www.w3.org/TR/resource-timing/
Bluetooth API: https://webbluetoothcg.github.io/web-bluetooth/
The fact there isn't good cross-browser support is a reason to check whether or not a user's browser has support and use progressive enhancement to only show the feature to users who can benefit from it. It isn't a reason to avoid using the API unless you want to stick to the lowest common denominator for your users. In my case that would mean serving Chrome and Firefox users content that's developed for IE10. That would suck for people who are able to update their browser, so I prefer to put the effort in to adding features progressively.