gpu: Crash GPU process when context was lost through robustness
gpu: Crash GPU process when context was lost through robustness

This works around both recovery problems in drivers as well as
in our recovery flow (480545).

Note that this is already the default behavior on Windows.

BUG=458269,475676,503414,480545

Review URL: https://codereview.chromium.org/1282973004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#342928}

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