Migrate base::TaskRunner from Closure to OnceClosure

content/child/worker_thread_registry.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_CHILD_WORKER_THREAD_REGISTRY_H_
 #define CONTENT_CHILD_WORKER_THREAD_REGISTRY_H_
 
 #include <map>
 
 #include "base/callback.h"
@@ skipping 21 matching lines @@
 
   // Always returns a non-null task runner regardless of whether the
   // corresponding worker thread is gone or not. If the thread is already gone
   // the tasks posted onto the task runner will be silently discarded.
   base::TaskRunner* GetTaskRunnerFor(int worker_id);
 
  private:
   friend class WorkerThread;
   friend class WorkerThreadRegistryTest;
 
-  bool PostTask(int id, base::Closure task);
+  bool PostTask(int id, base::OnceClosure task);
 
   using IDToTaskRunnerMap = std::map<base::PlatformThreadId, base::TaskRunner*>;
 
   ~WorkerThreadRegistry();
 
   // It is possible for an IPC message to arrive for a worker thread that has
   // already gone away. In such cases, it is still necessary to provide a
   // task-runner for that particular thread, because otherwise the message will
   // end up being handled as per usual in the main-thread, causing incorrect
   // results. |task_runner_for_dead_worker_| is used to handle such messages,
   // which silently discards all the tasks it receives.
   scoped_refptr<base::TaskRunner> task_runner_for_dead_worker_;
 
   IDToTaskRunnerMap task_runner_map_;
   base::Lock task_runner_map_lock_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WORKER_THREAD_REGISTRY_H_