Passing invalid arguments to the multi-view end-points should not generate an error if a texture is being detached from the framebuffer. BUG=angleproject:2062 TEST=angle_end2end_tests Change-Id: I22e1ed13b64db046724031d0189612d5e111dcac Reviewed-on: https://chromium-review.googlesource.com/635166 Commit-Queue: Martin Radev <mradev@nvidia.com> Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
