When driver does not support the EGL_KHR_swap_buffers_with_damage
extension, call regular eglSwapBuffers instead.

BUG=angleproject:2464

Change-Id: Ie3a395d37b61ef5ac65b098b312e9ead1c8bc799
Reviewed-on: https://chromium-review.googlesource.com/1117832
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>