Replace deprecated base::NonThreadSafe in content/child/fileapi in favor of SequenceChecker.

content/child/fileapi/webfilesystem_impl.cc

 // Copyright 2013 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 "content/child/fileapi/webfilesystem_impl.h"
 
 #include <stddef.h>
 #include <tuple>
 
 #include "base/bind.h"
@@ skipping 379 matching lines @@
 }
 
 WebFileSystemImpl::WebFileSystemImpl(
     const scoped_refptr<base::SingleThreadTaskRunner>& main_thread_task_runner)
     : main_thread_task_runner_(main_thread_task_runner),
       next_callbacks_id_(1) {
   g_webfilesystem_tls.Pointer()->Set(this);
 }
 
 WebFileSystemImpl::~WebFileSystemImpl() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   g_webfilesystem_tls.Pointer()->Set(NULL);
 }
 
 void WebFileSystemImpl::WillStopCurrentWorkerThread() {
   delete this;
 }
 
 void WebFileSystemImpl::OpenFileSystem(const blink::WebURL& storage_partition,
                                        blink::WebFileSystemType type,
                                        WebFileSystemCallbacks callbacks) {
@@ skipping 237 matching lines @@
       waitable_results_.find(callbacksId);
   if (found == waitable_results_.end())
     return false;
 
   found->second->WaitAndRun();
   return true;
 }
 
 int WebFileSystemImpl::RegisterCallbacks(
     const WebFileSystemCallbacks& callbacks) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   int id = next_callbacks_id_++;
   callbacks_[id] = callbacks;
   return id;
 }
 
 WebFileSystemCallbacks WebFileSystemImpl::GetCallbacks(int callbacks_id) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   CallbacksMap::iterator found = callbacks_.find(callbacks_id);
   DCHECK(found != callbacks_.end());
   return found->second;
 }
 
 void WebFileSystemImpl::UnregisterCallbacks(int callbacks_id) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   CallbacksMap::iterator found = callbacks_.find(callbacks_id);
   DCHECK(found != callbacks_.end());
   callbacks_.erase(found);
 
   waitable_results_.erase(callbacks_id);
 }
 
 WaitableCallbackResults* WebFileSystemImpl::MaybeCreateWaitableResults(
     const WebFileSystemCallbacks& callbacks, int callbacks_id) {
   if (!callbacks.ShouldBlockUntilCompletion())
     return NULL;
   WaitableCallbackResults* results = new WaitableCallbackResults();
   waitable_results_[callbacks_id] = results;
   return results;
 }
 
 }  // namespace content