base::Bind: Convert proxy_resolving_client_socket.[cc,h] and deps.

jingle/notifier/base/proxy_resolving_client_socket.h

Index: jingle/notifier/base/proxy_resolving_client_socket.h
diff --git a/jingle/notifier/base/proxy_resolving_client_socket.h b/jingle/notifier/base/proxy_resolving_client_socket.h
index 68aa718923de5387527725fa61b97f1c346063cf..c89d77b6a4e60154c4e95ede1c2adb11aa875149 100644
--- a/jingle/notifier/base/proxy_resolving_client_socket.h
+++ b/jingle/notifier/base/proxy_resolving_client_socket.h
@@ -77,9 +77,8 @@ class ProxyResolvingClientSocket : public net::StreamSocket {
   void ReportSuccessfulProxyConnection();
 
   // Callbacks passed to net APIs.
-  net::OldCompletionCallbackImpl<ProxyResolvingClientSocket>
-      proxy_resolve_callback_;
-  net::OldCompletionCallbackImpl<ProxyResolvingClientSocket> connect_callback_;
+  net::CompletionCallback proxy_resolve_callback_;
+  net::CompletionCallback connect_callback_;
 
   scoped_refptr<net::HttpNetworkSession> network_session_;