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

net/url_request/url_request_context.cc

 // 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.
 
 #include "net/url_request/url_request_context.h"
 
 #include <inttypes.h>
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
@@ skipping 40 matching lines @@
       reporting_service_(nullptr),
       enable_brotli_(false),
       check_cleartext_permitted_(false),
       name_(nullptr),
       largest_outstanding_requests_count_seen_(0) {
   base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
       this, "URLRequestContext", base::ThreadTaskRunnerHandle::Get());
 }
 
 URLRequestContext::~URLRequestContext() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   AssertNoURLRequests();
   base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
       this);
 }
 
 void URLRequestContext::CopyFrom(const URLRequestContext* other) {
   // Copy URLRequestContext parameters.
   set_net_log(other->net_log_);
   set_host_resolver(other->host_resolver_);
   set_cert_verifier(other->cert_verifier_);
@@ skipping 105 matching lines @@
     HttpCache* http_cache = transaction_factory->GetCache();
     if (http_cache)
       http_cache->DumpMemoryStats(pmd, dump->absolute_name());
   }
   if (sdch_manager_)
     sdch_manager_->DumpMemoryStats(pmd, dump_name);
   return true;
 }
 
 }  // namespace net