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This avoids some recalculations (chances for bugs) in
BrowserNonClientFrameViewAsh. The bounds are horizontally inverted
(i.e. they are relative to the top right of the frame) to minimize
the number of times they need to be updated when resizing the window
and the likelihood of ephemeral inconsistencies.

Also fix the registered type of kRestoreBoundsOverrideKey. Since it was
registered as a primitive, the address itself would get copied across
processes.

Bug: 854704
Change-Id: Iedd4eb4dfb2172f7a9ba66bbc542db33633aaf77
Reviewed-on: https://chromium-review.googlesource.com/1144058Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577604}