Avoid recursion in secure socket `_tryFilter` method.
Avoid recursion in secure socket `_tryFilter` method.

Change-Id: If91859b008c76ed1dd4b86c06a563418757bc109
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/180180
Reviewed-by: Johnni Winther <0f64ef784d57ffb064b634040f9eeba0d33d0be4@google.com>
Commit-Queue: Lasse R.H. Nielsen <80295e4ef244a07779f93eaa95d582bad8e316a5@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk