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

net/proxy/dhcp_proxy_script_fetcher_win.cc

Index: net/proxy/dhcp_proxy_script_fetcher_win.cc
diff --git a/net/proxy/dhcp_proxy_script_fetcher_win.cc b/net/proxy/dhcp_proxy_script_fetcher_win.cc
index fc72b86c86ce4d84105e27fddb674aa16c4e03ba..25438e3c0855ea93fa11322c5d4836507f1f4c85 100644
--- a/net/proxy/dhcp_proxy_script_fetcher_win.cc
+++ b/net/proxy/dhcp_proxy_script_fetcher_win.cc
@@ -63,6 +63,7 @@ DhcpProxyScriptFetcherWin::DhcpProxyScriptFetcherWin(
 }
 
 DhcpProxyScriptFetcherWin::~DhcpProxyScriptFetcherWin() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   // Count as user-initiated if we are not yet in STATE_DONE.
   Cancel();
 
@@ -76,7 +77,7 @@ int DhcpProxyScriptFetcherWin::Fetch(base::string16* utf16_text,
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "476182 DhcpProxyScriptFetcherWin::Fetch 1"));
 
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   if (state_ != STATE_START && state_ != STATE_DONE) {
     NOTREACHED();
     return ERR_UNEXPECTED;
@@ -108,13 +109,13 @@ int DhcpProxyScriptFetcherWin::Fetch(base::string16* utf16_text,
 }
 
 void DhcpProxyScriptFetcherWin::Cancel() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   CancelImpl();
 }
 
 void DhcpProxyScriptFetcherWin::OnShutdown() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   // Back up callback, if there is one, as CancelImpl() will destroy it.
   net::CompletionCallback callback = std::move(callback_);
@@ -131,7 +132,7 @@ void DhcpProxyScriptFetcherWin::OnShutdown() {
 }
 
 void DhcpProxyScriptFetcherWin::CancelImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   if (state_ != STATE_DONE) {
     callback_.Reset();
@@ -156,7 +157,7 @@ void DhcpProxyScriptFetcherWin::OnGetCandidateAdapterNamesDone(
           "476182 "
           "DhcpProxyScriptFetcherWin::OnGetCandidateAdapterNamesDone 1"));
 
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   // This can happen if this object is reused for multiple queries,
   // and a previous query was cancelled before it completed.
@@ -207,12 +208,12 @@ void DhcpProxyScriptFetcherWin::OnGetCandidateAdapterNamesDone(
 }
 
 std::string DhcpProxyScriptFetcherWin::GetFetcherName() const {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   return "win";
 }
 
 const GURL& DhcpProxyScriptFetcherWin::GetPacURL() const {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK_EQ(state_, STATE_DONE);
 
   return pac_url_;