Replace Closure in TaskRunner::PostTask with OneShotCallback

content/child/worker_thread_registry.cc

 // 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.
 
 #include "content/child/worker_thread_registry.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/lazy_instance.h"
@@ skipping 20 matching lines @@
 
 // A task-runner that refuses to run any tasks.
 class DoNothingTaskRunner : public base::TaskRunner {
  public:
   DoNothingTaskRunner() {}
 
  private:
   ~DoNothingTaskRunner() override {}
 
   bool PostDelayedTask(const tracked_objects::Location& from_here,
-                       const base::Closure& task,
+                       base::OnceClosure task,
                        base::TimeDelta delay) override {
     return false;
   }
 
   bool RunsTasksOnCurrentThread() const override { return false; }
 };
 
 }  // namespace
 
 // WorkerThread implementation:
@@ skipping 75 matching lines @@
 bool WorkerThreadRegistry::PostTask(int id, const base::Closure& closure) {
   DCHECK(id > 0);
   base::AutoLock locker(task_runner_map_lock_);
   IDToTaskRunnerMap::iterator found = task_runner_map_.find(id);
   if (found == task_runner_map_.end())
     return false;
   return found->second->PostTask(FROM_HERE, closure);
 }
 
 }  // namespace content