Reland "Switch to hard-coding metric ids for v1.0 config"

This is a reland of abecf940e86d8c16e3a9ce1939334413374fa101

Original change's description:
> Switch to hard-coding metric ids for v1.0 config
> 
> Change-Id: If3c0983d5bd8fdfe25bb1093758ac4d3e55bde0b

Change-Id: Ia6b7236d6611c584b47a9a16aed74391f1f832de
2 files changed