Add NULL init for swizzle SRVs with eglBindTexImage textures. Change-Id: I8a1069013f37988632db07359d65f8215041978e Reviewed-on: https://chromium-review.googlesource.com/178431 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Nicolas Capens <nicolascapens@chromium.org> Commit-Queue: Nicolas Capens <nicolascapens@chromium.org> Tested-by: Nicolas Capens <nicolascapens@chromium.org>