Capture/Replay: Serialize buffer texture buffer IDs. Instead of trying to serialize buffer texture contents, we can serialize the ID of the bound buffer. The buffer contents are already serialized in the buffer manager iteration. This prevents an ASSERT failure in PUBG. Bug: angleproject:6328 Change-Id: I5427df86c7146d27cf10e316db0b1436b6774747 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3123229 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>