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When we enter overview the shelf is revealed which causes a workspace bounds
change. Normally the maximize mode window manager would update all active
windows to have the new bounds but this effectively undoes the transformation
applied to the window to show it in overview. As such, we defer updating the
bounds until we exit overview mode.

BUG=401664
TEST=WindowSelectorTest.FullscreenWindowMaximizeMode, WindowAnimationsTest.CrossFadeToBoundsFromTransform
TEST=Repro steps in http://crbug.com/401664

Review URL: https://codereview.chromium.org/588193003

Cr-Commit-Position: refs/heads/master@{#297455}