Force new displays on each Windows 7 end2end test. This should fix the buffer allocation crash manifesting on Windows 7 x64. Bug: angleproject:3261 Bug: chromium:944454 Change-Id: I8a0713e1d1f18285f128c0cfb98b398c6a336a36 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1534461 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>