Context: Limit max samples to 4 during capture. In order to be compatible with more devices like the Pixel 4, GL_MAX_SAMPLES should be set to 4 during capture. Bug: angleproject:7306 Change-Id: Ie7d67be661bc02e15934b6e561f59696ffd3643a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3714600 Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Cody Northrop <cnorthrop@google.com>