[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>
4 files changed