GitLab

https://chromium-review.googlesource.com/c/chromium/src/+/1145066 adds a
new STL-compatible interface to EnumSet and EnumSet::Iterator.

https://chromium-review.googlesource.com/c/chromium/src/+/1145182 and
https://chromium-review.googlesource.com/c/chromium/src/+/1145186 completely
remove usage of the old one.

Due to this, the old interface is not needed anymore.

This refers to the methods EnumSet::First (superseded by EnumSet::begin),
EnumSet::Iterator::Get (superseded by unary operator * for dereferencing) and
EnumSet::Iterator::Inc (superseded by unary operator ++ for incrementing).
Therefore, remove them. EnumSet::Iterator::Good remains because it is used
internally, but its visibility has been changed from public to private to
reflect this.

Bug: 860435
Change-Id: I7d27123cea02701795b6b9d278a3d9556fefc697
Reviewed-on: https://chromium-review.googlesource.com/1146929
Commit-Queue: David Davidović <davidovic@google.com>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584019}