ANGLE requires that GL_DEPTH_COMPONENT32_OES be supported in order to expose depth texture extensions. This format is not supported on iOS.
Temporarily relax this restriction while investigating other WebGL failures.
Created attachment 397637 [details]
Note that there are important steps to take when updating ANGLE. See http://trac.webkit.org/wiki/UpdatingANGLE
LGTM to ifdef this out in ANGLE. Let's investigate the other failures.
Committed r260773: <https://trac.webkit.org/changeset/260773>