Change all ms to i64
Change all ms to i64

Summary: It should be at least 45 bit according to https://en.cppreference.com/w/cpp/chrono/duration

Reviewed By: Mizuchi

Differential Revision: D38753056

fbshipit-source-id: fcb6c4649754b9eda05d8085938c0d06ae3f1cf8

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift