[M62 cherry-pick] Disable deferred proxies a different way in Chrome This keeps crbug.com/769760 working but also fixes the new bug (crbug.com/769898) One can compare with https://skia-review.googlesource.com/c/skia/+/18592 ([M60 cherry-pick] Disable deferred proxies for M60 branch) No-Tree-Checks: true No-Try: true No-Presubmit: true Bug: 769898 Change-Id: Ic9a9f8cd540bda04624f79e679744ccb4feaa75f Reviewed-on: https://skia-review.googlesource.com/59746 Reviewed-by: Robert Phillips <robertphillips@google.com>