Replace Closure in TaskRunner::PostTask with OneShotCallback

third_party/WebKit/public/platform/scheduler/child/single_thread_idle_task_runner.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 THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_CHILD_SINGLE_THREAD_IDLE_TASK_RUNNER_H_
 #define THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_CHILD_SINGLE_THREAD_IDLE_TASK_RUNNER_H_
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 12 matching lines @@
 namespace blink {
 namespace scheduler {
 
 // A SingleThreadIdleTaskRunner is a task runner for running idle tasks. Idle
 // tasks have an unbound argument which is bound to a deadline
 // (in base::TimeTicks) when they are run. The idle task is expected to
 // complete by this deadline.
 class SingleThreadIdleTaskRunner
     : public base::RefCountedThreadSafe<SingleThreadIdleTaskRunner> {
  public:
-  typedef base::Callback<void(base::TimeTicks)> IdleTask;
+  typedef base::OnceCallback<void(base::TimeTicks)> IdleTask;
 
   // Used to request idle task deadlines and signal posting of idle tasks.
   class BLINK_PLATFORM_EXPORT Delegate {
    public:
     Delegate();
     virtual ~Delegate();
 
     // Signals that an idle task has been posted. This will be called on the
     // posting thread, which may not be the same thread as the
     // SingleThreadIdleTaskRunner runs on.
@@ skipping 11 matching lines @@
   };
 
   // NOTE Category strings must have application lifetime (statics or
   // literals). They may not include " chars.
   SingleThreadIdleTaskRunner(
       scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner,
       Delegate* Delegate,
       const char* tracing_category);
 
   virtual void PostIdleTask(const tracked_objects::Location& from_here,
-                            const IdleTask& idle_task);
+                            IdleTask idle_task);
 
   virtual void PostNonNestableIdleTask(
       const tracked_objects::Location& from_here,
-      const IdleTask& idle_task);
+      IdleTask idle_task);
 
   bool RunsTasksOnCurrentThread() const;
 
   void SetBlameContext(base::trace_event::BlameContext* blame_context);
 
  protected:
   virtual ~SingleThreadIdleTaskRunner();
 
  private:
   friend class base::RefCountedThreadSafe<SingleThreadIdleTaskRunner>;
 
   void RunTask(IdleTask idle_task);
 
   scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner_;
   Delegate* delegate_;  // NOT OWNED
   const char* tracing_category_;
   base::trace_event::BlameContext* blame_context_;  // Not owned.
   base::WeakPtr<SingleThreadIdleTaskRunner> weak_scheduler_ptr_;
   base::WeakPtrFactory<SingleThreadIdleTaskRunner> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(SingleThreadIdleTaskRunner);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_CHILD_SINGLE_THREAD_IDLE_TASK_RUNNER_H_