AppRTCDemo was blocking the main thread for network requests. This fixes it by making the background queue serial instead of using @synchronize to make the background operations serial.
R=fischman@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/16379004
Patch from Bridger Maxwell <bridgeyman@gmail.com>.
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6028 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/AUTHORS b/AUTHORS
index 6916016..d9bb54d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -3,6 +3,7 @@
Anil Kumar <an1kumar@gmail.com>
Ben Strong <bstrong@gmail.com>
+Bridger Maxwell <bridgeyman@gmail.com>
Christophe Dumez <ch.dumez@samsung.com>
Eric Rescorla, RTFM Inc.
Jie Mao <maojie0924@gmail.com>