Standardize usage of virtual/override/final specifiers in jingle/.

jingle/notifier/base/weak_xmpp_client_unittest.cc

 // 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.
 
 #include "jingle/notifier/base/weak_xmpp_client.h"
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 16 matching lines @@
 };
 
 const buzz::XmppEngine::State kState = buzz::XmppEngine::STATE_OPEN;
 const char kInputLog[] = "input log";
 const char kOutputLog[] = "output log";
 
 class WeakXmppClientTest : public testing::Test {
  protected:
   WeakXmppClientTest() : task_pump_(new jingle_glue::TaskPump()) {}
 
-  virtual ~WeakXmppClientTest() {}
+  ~WeakXmppClientTest() override {}
 
   void ConnectSignals(buzz::XmppClient* xmpp_client) {
     xmpp_client->SignalStateChange.connect(
         &mock_xmpp_delegate_, &MockXmppDelegate::OnStateChange);
     xmpp_client->SignalLogInput.connect(
         &mock_xmpp_delegate_, &MockXmppDelegate::OnInputLog);
     xmpp_client->SignalLogOutput.connect(
         &mock_xmpp_delegate_, &MockXmppDelegate::OnOutputLog);
   }
 
@@ skipping 67 matching lines @@
 
   task_pump_.reset();
   EXPECT_FALSE(weak_ptr.get());
   // |weak_xmpp_client| is truly invalid at this point so we can't
   // RaiseSignals() with it.
 }
 
 }  // namespace
 
 }  // namespace notifier