Add a new GetNegotiatedProtocol method to StreamSocket and implement in all subclasses.

jingle/notifier/base/fake_ssl_client_socket.h

Index: jingle/notifier/base/fake_ssl_client_socket.h
diff --git a/jingle/notifier/base/fake_ssl_client_socket.h b/jingle/notifier/base/fake_ssl_client_socket.h
index 3e428cd6c6e5919eaab43df3fa45cc8ef6b36716..a0ef858cd8c7e84146ad85959f8033d2792f7d0e 100644
--- a/jingle/notifier/base/fake_ssl_client_socket.h
+++ b/jingle/notifier/base/fake_ssl_client_socket.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
@@ -65,6 +65,7 @@ class FakeSSLClientSocket : public net::StreamSocket {
   virtual bool UsingTCPFastOpen() const OVERRIDE;
   virtual int64 NumBytesRead() const OVERRIDE;
   virtual base::TimeDelta GetConnectTimeMicros() const OVERRIDE;
+  virtual net::NextProto GetNegotiatedProtocol() const OVERRIDE;
 
  private:
   enum HandshakeState {