Vulkan: Attempt to fix the perf/mem regression of previous CL We should get the size before destroy garbage. Otherwise the size returned likely is "garbage". The accounting may affect other logic and cause memory and perf regression. Bug: b/305752495 Bug: b/305791801 Change-Id: If89bc95c11f43ff3da61fdab3ae961c0211ca92a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4943169 Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Reviewed-by: Roman Lavrov <romanl@google.com> Commit-Queue: Charlie Lao <cclao@google.com>