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

net/url_request/url_request_throttler_manager.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_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_
 #define NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/threading/non_thread_safe.h"
 #include "base/threading/platform_thread.h"
+#include "base/threading/thread_checker.h"
 #include "net/base/net_export.h"
 #include "net/base/network_change_notifier.h"
 #include "net/url_request/url_request_throttler_entry.h"
 #include "url/gurl.h"
 
 namespace net {
 
 class NetLog;
 class NetLogWithSource;
 
 // Class that registers URL request throttler entries for URLs being accessed
 // in order to supervise traffic. URL requests for HTTP contents should
 // register their URLs in this manager on each request.
 //
 // URLRequestThrottlerManager maintains a map of URL IDs to URL request
 // throttler entries. It creates URL request throttler entries when new URLs
 // are registered, and does garbage collection from time to time in order to
 // clean out outdated entries. URL ID consists of lowercased scheme, host, port
 // and path. All URLs converted to the same ID will share the same entry.
 class NET_EXPORT URLRequestThrottlerManager
-    : NON_EXPORTED_BASE(public base::NonThreadSafe),
-      public NetworkChangeNotifier::IPAddressObserver,
+    : public NetworkChangeNotifier::IPAddressObserver,
       public NetworkChangeNotifier::ConnectionTypeObserver {
  public:
   URLRequestThrottlerManager();
   ~URLRequestThrottlerManager() override;
 
   // Must be called for every request, returns the URL request throttler entry
   // associated with the URL. The caller must inform this entry of some events.
   // Please refer to url_request_throttler_entry_interface.h for further
   // informations.
   scoped_refptr<URLRequestThrottlerEntryInterface> RegisterRequestUrl(
@@ skipping 91 matching lines @@
   // Initially false, switches to true once we have logged because of back-off
   // being disabled for localhost.
   bool logged_for_localhost_disabled_;
 
   // NetLog to use, if configured.
   NetLogWithSource net_log_;
 
   // Valid once we've registered for network notifications.
   base::PlatformThreadId registered_from_thread_;
 
+  THREAD_CHECKER(thread_checker_);
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestThrottlerManager);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_