chrome/browser/task_management/providers/task_provider.cc

   1 // Copyright 2015 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 "chrome/browser/task_management/providers/task_provider.h"
   6
   7 namespace task_management {
   8
   9 TaskProvider::TaskProvider()
  10     : observer_(nullptr) {
  11 }
  12
  13 TaskProvider::~TaskProvider() {
  14 }
  15
  16 void TaskProvider::SetObserver(TaskProviderObserver* observer) {
  17   DCHECK(observer);
  18   DCHECK(!observer_);
  19   observer_ = observer;
  20   StartUpdating();
  21 }
  22
  23 void TaskProvider::ClearObserver() {
  24   DCHECK(observer_);
  25   observer_ = nullptr;
  26   StopUpdating();
  27 }
  28
  29 void TaskProvider::NotifyObserverTaskAdded(Task* task) const {
  30   DCHECK(observer_);
  31   observer_->TaskAdded(task);
  32 }
  33
  34 void TaskProvider::NotifyObserverTaskRemoved(Task* task) const {
  35   DCHECK(observer_);
  36   observer_->TaskRemoved(task);
  37 }
  38
  39 }  // namespace task_management