Boringssl data structures are not neccessary thread-safe, so should not be handled on certificate evaluator that runs asynchronously. That leaves only (potentially long-running) SecTrust call to be done by certificate evaluator.
Fixes https://github.com/flutter/flutter/issues/70800.
TEST=io/https_connection_closed_during_handshake_test.dart
Change-Id: I6f77f1efc9ec83c50e6bcc551c0f63d6465c763e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174340
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Alexander Aprelev