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-tls-timeout-server-2.js b/test/parallel/test-tls-timeout-server-2.js
index a16ce33167..dc3d52da01 100644
--- a/test/parallel/test-tls-timeout-server-2.js
+++ b/test/parallel/test-tls-timeout-server-2.js
@@ -15,10 +15,11 @@ var options = {
 };
 
 var server = tls.createServer(options, function(cleartext) {
-  cleartext.setTimeout(50, function() {
+  var s = cleartext.setTimeout(50, function() {
     cleartext.destroy();
     server.close();
   });
+  assert.ok(s instanceof tls.TLSSocket);
 });
 
 server.listen(common.PORT, function() {