tree acfe74f7d6975d9f2d7712cf2568d93de98bf0b4
parent 579cbd80bd4979e0f10279d53835b23c27214d50
author Brian Wilkerson <brianwilkerson@google.com> 1743788391 -0700
committer Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> 1743788391 -0700

Move and split the message scheduler

This CL makes three changes:
- moves the message scheduler into a new directory,
- splits the implementation into two files,
- and renames `MessageObject` to `ScheduledMessage`.

It does not make any semantic changes to the code.

The expectation is that we will need to make the message scheduler more
complex as part of improving the performance of the server, and that it
will be easier to do this if the code is structured differently.

Change-Id: I3f8741cadceb34c69fd45c1bf21f331d15824565
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/420500
Reviewed-by: Phil Quitslund <pquitslund@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>