components/scheduler/child/cancelable_closure_holder.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/scheduler/child/cancelable_closure_holder.h"
   6
   7 namespace scheduler {
   8
   9 CancelableClosureHolder::CancelableClosureHolder() {
  10 }
  11
  12 CancelableClosureHolder::~CancelableClosureHolder() {
  13 }
  14
  15 void CancelableClosureHolder::Reset(const base::Closure& callback) {
  16   callback_ = callback;
  17   cancelable_callback_.Reset(callback_);
  18 }
  19
  20 void CancelableClosureHolder::Cancel() {
  21   DCHECK(!callback_.is_null());
  22   cancelable_callback_.Reset(callback_);
  23 }
  24
  25 const base::Closure& CancelableClosureHolder::callback() const {
  26   DCHECK(!callback_.is_null());
  27   return cancelable_callback_.callback();
  28 }
  29
  30 }  // namespace scheduler