The concern is that if a user changes the framebuffer's attachment
to one with a different size, contextVk->updateScissor() may not be
called and we may render too much/little. This change creates a test to
verify that when the FBO's attachment size changes, the correct amount
of fragments are drawn.
Bug: angleproject:3754
Test: FramebufferTest_ES3
Change-Id: I47108d6fe3e671ddc8c30cf969f63c1c3ae76f84
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1842128
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
