GitLab

Use enum class instead of enum for FocusManager::FocusChangeReason
enum class is more type safety.

Bug: 940736
Change-Id: Ic635038be25929f3b9a233490617bdb5deb6d141
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1767281
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#689740}