dart:io | Pass errors from multithreaded encryption back to Dart.

sdk/lib/io/secure_socket.dart

Index: sdk/lib/io/secure_socket.dart
diff --git a/sdk/lib/io/secure_socket.dart b/sdk/lib/io/secure_socket.dart
index ee94dc595b4c0707ba0d1b95afb2d98c2537973b..417534a5d7f632b50484bb4cbe2749b63754361b 100644
--- a/sdk/lib/io/secure_socket.dart
+++ b/sdk/lib/io/secure_socket.dart
@@ -734,7 +734,9 @@ class _RawSecureSocket extends Stream<RawSocketEvent>
   }
 
   void _reportError(e) {
-    if (_connectPending) {
+    if (_status == CLOSED) {
+      return;
+    } else if (_connectPending) {
       // _connectPending is true after the underlying connection has been
       // made, but before the handshake has completed.
       if (e is! TlsException) {
@@ -947,6 +949,9 @@ class _RawSecureSocket extends Stream<RawSocketEvent>
     }
 
     return _filterService.call(args).then((response) {
+      if (response.length == 2) {
+        _reportError(new TlsException('${response[1]} error ${response[0]}'));
+      }
       bool wasInHandshake = response[1];
       int start(int index) => response[2 * index + 2];
       int end(int index) => response[2 * index + 3];