http,net,tls: return this from setTimeout methods

Modifies the setTimeout methods for the following prototypes:

- http.ClientRequest
- http.IncomingMessage
- http.OutgoingMessage
- http.Server
- https.Server
- net.Socket
- tls.TLSSocket

Previously, the above functions returned undefined. They now return
`this`. This is useful for chaining function calls.

PR-URL: https://github.com/nodejs/io.js/pull/1699
Reviewed-By: Roman Reiss <me@silverwind.io>

1 files changed, 2 insertions, 1 deletions

diff --git a/test/parallel/test-http-client-timeout.js b/test/parallel/test-http-client-timeout.js
index 8ea36de41e..a9b093eb0c 100644
--- a/test/parallel/test-http-client-timeout.js
+++ b/test/parallel/test-http-client-timeout.js
@@ -23,7 +23,8 @@ server.listen(options.port, options.host, function() {
   function destroy() {
     req.destroy();
   }
-  req.setTimeout(1, destroy);
+  var s = req.setTimeout(1, destroy);
+  assert.ok(s instanceof http.ClientRequest);
   req.on('error', destroy);
   req.end();
 });