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Sometimes Windows incorrectly changes bounds of maximized windows after
attaching or detaching additional displays. In this case user can see
non-client area of the window (that should be hidden in normal case).

This workaround code restores window position if problem occurs.

BUG=651449

Review-Url: https://codereview.chromium.org/2379063003
Cr-Commit-Position: refs/heads/master@{#424123}