GitLab

This moves the majority of the MultiUserWindowManagerDelegate functions
into the mojom. For classic mode, a mojo::Binding is created so that notification
happens async (just as it will in multi-process mdoe).

MultiUserWindowManagerWindowDelegate has been removed.

MultiUserWindowManagerDelegate has been removed.

Adds MultiUserWindowManagerDelegateClassic. Here's the comment for it:
// Delegate used in classic and single-process mash mode. This delegate is
// notified when the state of a window changes. In classic mode, this delegate
// is called for all windows, in single-process mash mode, this delegate is
// called for Windows created in ash's window hierarchy (more specifically,
// Windows whose aura::Env has a mode of aura::Mode::LOCAL). For example, Arc
// creates Windows that are parented directly to Ash's window hierarchy, changes
// to such windows are called through this delegate.

Ideally MultiUserWindowManagerDelegateClassic wouldn't be necessary, but that
would require assigning unique ids for local windows, which would be rather
error prone.

The biggest change here is that MultiUserWindowManagerChromeOS is now notified
async of the functions that were in MultiUserWindowManagerDelegate, even in
classic.


BUG=875111
TEST=covered by tests

Change-Id: I51e8a89ae3c4e6096d0cf04dc91133781b8cb4cf
Reviewed-on: https://chromium-review.googlesource.com/c/1354558
Commit-Queue: Scott Violet <sky@chromium.org>
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612428}