Skip PixelLocalStorageTest.Interrupt on iOS Metal Bug: angleproject:7994, chromium:1421437 Change-Id: Ib6a8b316212510f73f56ef9e56c8d2da2fe07cfc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4359704 Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Auto-Submit: Yuly Novikov <ynovikov@chromium.org> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>