This test will ensure the backbuffer is also properly resized when the window is resized. Bug: angleproject:4167 Change-Id: I1d73f07379b4f05e453520e22ef1369f51182197 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1934311 Commit-Queue: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
