c1f691dff2
A crash may randomly happen in IsWindowMinimized(), the potential reason is that |on_screen| is not retrieved from |window| with kCGWindowIsOnScreen property. So add a == NULL check before executing CFBooleanGetValue(). Bug: chromium:758554 Change-Id: I25ad1ddbb21ec049ef237e55a8d25156bcd982c7 Reviewed-on: https://chromium-review.googlesource.com/634043 Reviewed-by: Jamie Walch <jamiewalch@chromium.org> Commit-Queue: Zijie He <zijiehe@chromium.org> Cr-Commit-Position: refs/heads/master@{#19527}