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

net/proxy/dhcp_proxy_script_adapter_fetcher_win.h

Index: net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
diff --git a/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h b/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
index 7d72537a77e065f13c776fa71309f4df9a50dc42..d95fe60df0395d091e8b782db492c4c5177b4893 100644
--- a/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
+++ b/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
@@ -13,8 +13,8 @@
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "base/sequence_checker.h"
 #include "base/strings/string16.h"
-#include "base/threading/non_thread_safe.h"
 #include "base/timer/timer.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
@@ -32,8 +32,7 @@ class URLRequestContext;
 // For a given adapter, this class takes care of first doing a DHCP lookup
 // to get the PAC URL, then if there is one, trying to fetch it.
 class NET_EXPORT_PRIVATE DhcpProxyScriptAdapterFetcher
-    : public base::SupportsWeakPtr<DhcpProxyScriptAdapterFetcher>,
-      NON_EXPORTED_BASE(public base::NonThreadSafe) {
+    : public base::SupportsWeakPtr<DhcpProxyScriptAdapterFetcher> {
  public:
   // |url_request_context| must outlive DhcpProxyScriptAdapterFetcher.
   // |task_runner| will be used to post tasks to a thread.
@@ -185,6 +184,8 @@ class NET_EXPORT_PRIVATE DhcpProxyScriptAdapterFetcher
 
   URLRequestContext* const url_request_context_;
 
+  SEQUENCE_CHECKER(sequence_checker_);
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(DhcpProxyScriptAdapterFetcher);
 };