GitLab

Groups all per-window shutdown code together and moves it before the
other shutdown code to match expected behaviour of shutdown in
multiwindow world.

Bug: none
Change-Id: I7abf63beecd3d2d6c0479da9c9a6f31477f3ae53
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2084595Reviewed-by: Mark Cogan <marq@chromium.org>
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746364}