Reset and then populate frontend features during display initialize Overwritten features were never reset even if a display was terminated. On platforms that reuse displays for all tests in the end2end suite, overridden feature would leak into subsequent tests causing unexpected failure. Bug: angleproject:8235 Change-Id: I1b359bc762a2bca8db4e4dbc7a587604e5bd6a5b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4643453 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: mohan maiya <m.maiya@samsung.com>