GitLab

Use enum class instead of enum for SizeCalculationType.
enum class is more type safety.

Bug: 940736
Change-Id: Idefe239973f2dc19c8fc1fc59217b2647a1d8eb9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2313396
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791137}