Enable SINGLE_BUFFER with eglCreateWindowSurface Enable core EGL feature for Vulkan using: VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR Test: angle_end2end_test --gtest_filter=EGLSingleBufferTest Bug: angleproject:7224 Change-Id: I3e85f932471f7b3c97bbc5c2f5314f25eb9b2867 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3610975 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>