When the Player width and height are set to 0 during runtime, the Player quits and a crash happens a bit later.

Repro:
1. Launch Editor and open attached project
2. Build standalone player.
3. Launch built Player.
4. Set the window mode to be "Windowed, 0 x 0".
5. Observe the Player behavior and wait for the crash report to pop out (~10 to 30 seconds)

Actual: The Player crashes after the width and height set to 0.
Expected: No crash happens after the Player quits.

Can be repro on: 2018.3.0a9 trunk, 2018.2.4f1 Saihai