To ensure that deferred clears are flushed before sampling. Bug: angleproject:5070 Change-Id: I72bfef752074eb1e722c669edaa2d0b5ddfd20b8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2705027 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
