Deprecate NonThreadSafe in net/ in favor of SequenceChecker/ThreadChecker.

net/proxy/dhcp_proxy_script_fetcher_win.h

 // 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.
 
 #ifndef NET_PROXY_DHCP_PROXY_SCRIPT_FETCHER_WIN_H_
 #define NET_PROXY_DHCP_PROXY_SCRIPT_FETCHER_WIN_H_
 
 #include <memory>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "net/base/net_export.h"
 #include "net/proxy/dhcp_proxy_script_fetcher.h"
 
 namespace base {
 class SequencedWorkerPool;
 class TaskRunner;
 }
 
 namespace net {
 
 class DhcpProxyScriptAdapterFetcher;
 class URLRequestContext;
 
 // Windows-specific implementation.
 class NET_EXPORT_PRIVATE DhcpProxyScriptFetcherWin
     : public DhcpProxyScriptFetcher,
-      public base::SupportsWeakPtr<DhcpProxyScriptFetcherWin>,
-      NON_EXPORTED_BASE(public base::NonThreadSafe) {
+      public base::SupportsWeakPtr<DhcpProxyScriptFetcherWin> {
  public:
   // Creates a DhcpProxyScriptFetcherWin that issues requests through
   // |url_request_context|. |url_request_context| must remain valid for
   // the lifetime of DhcpProxyScriptFetcherWin.
   explicit DhcpProxyScriptFetcherWin(URLRequestContext* url_request_context);
   ~DhcpProxyScriptFetcherWin() override;
 
   // DhcpProxyScriptFetcher implementation.
   int Fetch(base::string16* utf16_text,
             const CompletionCallback& callback) override;
@@ skipping 125 matching lines @@
 
   // NULL or the AdapterQuery currently in flight.
   scoped_refptr<AdapterQuery> last_query_;
 
   // Time |Fetch()| was last called, 0 if never.
   base::TimeTicks fetch_start_time_;
 
   // Worker pool we use for all DHCP lookup tasks.
   scoped_refptr<base::SequencedWorkerPool> worker_pool_;
 
+  THREAD_CHECKER(thread_checker_);
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(DhcpProxyScriptFetcherWin);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_DHCP_PROXY_SCRIPT_FETCHER_WIN_H_