According to the ANGLE_multiview spec, glBlitFramebuffer must
generate an INVALID_FRAMEBUFFER_OPERATION error if either the active read
framebuffer, or active draw framebuffer has a multi-view layout.

BUG=angleproject:2062
TEST=angle_end2end_tests

Change-Id: I885bdc970c9606cfad882f31759f5780c65d15e5
Reviewed-on: https://chromium-review.googlesource.com/590237
Commit-Queue: Martin Radev <mradev@nvidia.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>