|  | // 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 |