Deprecate NonThreadSafe in remoting in favor of SequenceChecker.

remoting/signaling/fake_signal_strategy.h

 // Copyright 2014 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.
 
 #ifndef REMOTING_SIGNALING_FAKE_SIGNAL_STRATEGY_H_
 #define REMOTING_SIGNALING_FAKE_SIGNAL_STRATEGY_H_
 
 #include <list>
 #include <queue>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 #include "remoting/signaling/iq_sender.h"
 #include "remoting/signaling/signal_strategy.h"
 #include "remoting/signaling/signaling_address.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
-class FakeSignalStrategy : public SignalStrategy,
-                           public base::NonThreadSafe {
+class FakeSignalStrategy : public SignalStrategy {
  public:
   // Calls ConenctTo() to connect |peer1| and |peer2|. Both |peer1| and |peer2|
   // must belong to the current thread.
   static void Connect(FakeSignalStrategy* peer1, FakeSignalStrategy* peer2);
 
   FakeSignalStrategy(const SignalingAddress& address);
   ~FakeSignalStrategy() override;
 
   const std::list<buzz::XmlElement*>& received_messages() {
     return received_messages_;
@@ skipping 46 matching lines @@
   int last_id_;
 
   base::TimeDelta send_delay_;
 
   bool simulate_reorder_ = false;
   std::unique_ptr<buzz::XmlElement> pending_stanza_;
 
   // All received messages, includes thouse still in |pending_messages_|.
   std::list<buzz::XmlElement*> received_messages_;
 
+  SEQUENCE_CHECKER(sequence_checker_);
+
   base::WeakPtrFactory<FakeSignalStrategy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeSignalStrategy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_SIGNALING_FAKE_SIGNAL_STRATEGY_H_