Fixed MaximizeModeWindowState::UpdateWindowPosition(...) to not animate incorrectly.
Screen rotation animations were slow and janky on low end hardware. This was due to animations being incorrectly initiated on the window bounds changed events.
TEST=Compared animation behavior pre-change and post-change for maximizable & non-maximizable windows when entering and exiting Touchview. Tested after opening windows when Touchview was active and when it was not.
BUG=471341
Review URL: https://codereview.chromium.org/
1043543002
Cr-Commit-Position: refs/heads/master@{#322643}