Migrate base::TaskRunner from Closure to OnceClosure

remoting/client/plugin/pepper_main_thread_task_runner.h

 // Copyright 2015 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 REMOTING_CLIENT_PLUGIN_PEPPER_MAIN_THREAD_TASK_RUNNER_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_MAIN_THREAD_TASK_RUNNER_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/time/time.h"
 
 namespace pp {
 class Core;
 }  // namespace pp
 
 namespace remoting {
 
 // SingleThreadTaskRunner implementation for the main plugin thread.
 class PepperMainThreadTaskRunner : public base::SingleThreadTaskRunner {
  public:
   PepperMainThreadTaskRunner();
 
   // base::SingleThreadTaskRunner interface.
   bool PostDelayedTask(const tracked_objects::Location& from_here,
-                       base::Closure task,
+                       base::OnceClosure task,
                        base::TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
-                                  base::Closure task,
+                                  base::OnceClosure task,
                                   base::TimeDelta delay) override;
   bool RunsTasksOnCurrentThread() const override;
 
  protected:
   ~PepperMainThreadTaskRunner() override;
 
  private:
   // Helper that allows a base::Closure to be used as a pp::CompletionCallback,
   // by ignoring the completion result.
-  void RunTask(base::Closure task);
+  void RunTask(base::OnceClosure task);
 
   pp::Core* core_;
 
   base::WeakPtr<PepperMainThreadTaskRunner> weak_ptr_;
   base::WeakPtrFactory<PepperMainThreadTaskRunner> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperMainThreadTaskRunner);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_MAIN_THREAD_TASK_RUNNER_H_