Don't release EGLImage refs until backends are respecified orphanImages is called before impl methods to respecify textures and renderbuffers. This can cause the backend objects to reference deleted images. TextureVk::handleImmutableSamplerTransition is one such function that is called using "previousImage". Fix this by having orphanImages return a RAII object that deletes the image when the caller chooses. In this case, after the impl methods have been called to respecify the backend data. Bug: b/194432407 Change-Id: Ifb265b4409ba43478731a1701e2409f089976b1d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3206430 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>