GL_OVR_multiview shouldn't be defined for WebGL spec'ed shaders According to the latest change in WebGL's OVR_multiview2 spec, the GL_OVR_multiview should NOT be defined. Refer to https://www.khronos.org/registry/webgl/extensions/OVR_multiview2/ I.e. this shader should NOT fail compilation: #version 300 es #extension GL_OVR_multiview2 : require #ifdef GL_OVR_multiview #error legacy GL_OVR_multiview support must be forbidden #endif .... Bug: angleproject:4279 Change-Id: Ic94cba6785ea3a1fa14d5131dc0960214aa574be Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1994830 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>