Change from inner_size to surface_size

[yezhizhen]

https://github.com/rust-windowing/winit/blob/master/winit/src/changelog/unreleased.md

I see that we are changing from inner_size to surface_size. But what is the intention? From what I observe, the internal logic itself does not change.

I'm aware of #2308. But I still a bit confused between the two concepts.

[kchibisov]

Name is more clear.

[yezhizhen]

I see I just found #3889.

[yezhizhen]

Do we have a timeline when to bring this to Release？

[kchibisov]

Just speaking in the context of the said change, renaming doesn't bring anything new besides the name.

If you're curious in general, the timeline is not defined, but hopefully in a near future.