| // 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 "base/callback_helpers.h" | 
 |  | 
 | namespace base { | 
 |  | 
 | ScopedClosureRunner::ScopedClosureRunner() = default; | 
 |  | 
 | ScopedClosureRunner::ScopedClosureRunner(OnceClosure closure) | 
 |     : closure_(std::move(closure)) {} | 
 |  | 
 | ScopedClosureRunner::~ScopedClosureRunner() { | 
 |   if (!closure_.is_null()) | 
 |     std::move(closure_).Run(); | 
 | } | 
 |  | 
 | ScopedClosureRunner::ScopedClosureRunner(ScopedClosureRunner&& other) | 
 |     : closure_(other.Release()) {} | 
 |  | 
 | ScopedClosureRunner& ScopedClosureRunner::operator=( | 
 |     ScopedClosureRunner&& other) { | 
 |   ReplaceClosure(other.Release()); | 
 |   return *this; | 
 | } | 
 |  | 
 | void ScopedClosureRunner::RunAndReset() { | 
 |   std::move(closure_).Run(); | 
 | } | 
 |  | 
 | void ScopedClosureRunner::ReplaceClosure(OnceClosure closure) { | 
 |   closure_ = std::move(closure); | 
 | } | 
 |  | 
 | OnceClosure ScopedClosureRunner::Release() { | 
 |   return std::move(closure_); | 
 | } | 
 |  | 
 | }  // namespace base |