Disable deferred proxies a different way in Chrome

This keeps crbug.com/769760 working but also fixes the new bug (crbug.com/769898)

Bug: 769898
Change-Id: I53c00e2bca602fa9c33e5a50a98274c1ce8b2534
Reviewed-on: https://skia-review.googlesource.com/57282
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed