Replace deprecated base::NonThreadSafe in chrome/browser/devtools in favor of SequenceChecker.

chrome/browser/devtools/device/usb/android_usb_socket.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 CHROME_BROWSER_DEVTOOLS_DEVICE_USB_ANDROID_USB_SOCKET_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVICE_USB_ANDROID_USB_SOCKET_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 #include "chrome/browser/devtools/device/usb/android_usb_device.h"
 #include "net/base/ip_endpoint.h"
 #include "net/log/net_log_with_source.h"
 #include "net/socket/stream_socket.h"
 
-class AndroidUsbSocket : public net::StreamSocket,
-                         public base::NonThreadSafe {
+class AndroidUsbSocket : public net::StreamSocket {
  public:
   AndroidUsbSocket(scoped_refptr<AndroidUsbDevice> device,
                    uint32_t socket_id,
                    const std::string& command,
                    base::Closure delete_callback);
   ~AndroidUsbSocket() override;
 
   void HandleIncoming(std::unique_ptr<AdbMessage> message);
 
   void Terminated(bool closed_by_device);
@@ skipping 37 matching lines @@
   net::NetLogWithSource net_log_;
   bool is_connected_;
   std::string read_buffer_;
   scoped_refptr<net::IOBuffer> read_io_buffer_;
   int read_length_;
   int write_length_;
   net::CompletionCallback connect_callback_;
   net::CompletionCallback read_callback_;
   net::CompletionCallback write_callback_;
   base::Closure delete_callback_;
+
+  SEQUENCE_CHECKER(sequence_checker_);
+
   base::WeakPtrFactory<AndroidUsbSocket> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AndroidUsbSocket);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVICE_USB_ANDROID_USB_SOCKET_H_