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

net/url_request/url_request_throttler_manager.h

Index: net/url_request/url_request_throttler_manager.h
diff --git a/net/url_request/url_request_throttler_manager.h b/net/url_request/url_request_throttler_manager.h
index e527b16b864ae4141b2e25b89b53c8969a1a8fb4..1321cab2cd692b3647de01ba9d7735e74ddb8c5a 100644
--- a/net/url_request/url_request_throttler_manager.h
+++ b/net/url_request/url_request_throttler_manager.h
@@ -11,8 +11,8 @@
 
 #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"
@@ -33,8 +33,7 @@ class NetLogWithSource;
 // clean out outdated entries.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();
@@ -146,6 +145,8 @@ class NET_EXPORT URLRequestThrottlerManager
   // Valid once we've registered for network notifications.
   base::PlatformThreadId registered_from_thread_;
 
+  THREAD_CHECKER(thread_checker_);
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestThrottlerManager);
 };