Revert r59012 which started using Chrome sockets for sync.

jingle/notifier/base/notifier_options.h

Index: jingle/notifier/base/notifier_options.h
diff --git a/jingle/notifier/base/notifier_options.h b/jingle/notifier/base/notifier_options.h
index 289b7d869e06553e226e51f997cbdac66dc39faf..32374cf5be127ef8941cf75af1bc213db357dae4 100644
--- a/jingle/notifier/base/notifier_options.h
+++ b/jingle/notifier/base/notifier_options.h
@@ -12,16 +12,23 @@ namespace notifier {
 
 struct NotifierOptions {
   NotifierOptions()
-      : try_ssltcp_first(false),
+      : use_chrome_async_socket(true),
+        try_ssltcp_first(false),
         notification_method(kDefaultNotificationMethod) {}
 
-  NotifierOptions(const bool try_ssltcp_first,
+  NotifierOptions(const bool use_chrome_async_socket,
+                  const bool try_ssltcp_first,
                   const net::HostPortPair& xmpp_host_port,
                   NotificationMethod notification_method)
-      : try_ssltcp_first(try_ssltcp_first),
+      : use_chrome_async_socket(use_chrome_async_socket),
+        try_ssltcp_first(try_ssltcp_first),
         xmpp_host_port(xmpp_host_port),
         notification_method(notification_method) {}
 
+  // Indicates whether to use the chrome-socket-based buzz::AsyncSocket
+  // implementation for notifications.
+  bool use_chrome_async_socket;
+
   // Indicates that the SSLTCP port (443) is to be tried before the the XMPP
   // port (5222) during login.
   bool try_ssltcp_first;