bug 1344584 - proactively close streams in test_be_conservative.js to prevent leaks r=mcmanus

MozReview-Commit-ID: 89h5lQJum6c

--HG--
extra : rebase_source : 50744f0c8bd21001362fbab090c4b34fd5992784

netwerk/test/unit/test_be_conservative.js

@@ -73,6 +73,7 @@ class InputStreamCallback {
 
   stop() {
     this.stopped = true;
+    this.output.close();
   }
 }
 
@@ -89,9 +90,7 @@ class TLSServerSecurityObserver {
     do_print(`TLS version used: ${status.tlsVersionUsed}`);
 
     if (this.stopped) {
-      do_print("handshake done callback stopped - closing streams and bailing");
-      this.input.close();
-      this.output.close();
+      do_print("handshake done callback stopped - bailing");
       return;
     }
 
@@ -102,6 +101,8 @@ class TLSServerSecurityObserver {
 
   stop() {
     this.stopped = true;
+    this.input.close();
+    this.output.close();
     this.callbacks.forEach((callback) => {
       callback.stop();
     });