Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / base / test / null_task_runner.h
1 // Copyright (c) 2012 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 "base/basictypes.h"
6 #include "base/compiler_specific.h"
7 #include "base/single_thread_task_runner.h"
8
9 namespace base {
10
11 // Helper class for tests that need to provide an implementation of a
12 // *TaskRunner class but don't actually care about tasks being run.
13
14 class NullTaskRunner : public base::SingleThreadTaskRunner {
15  public:
16   NullTaskRunner();
17
18   bool PostDelayedTask(const tracked_objects::Location& from_here,
19                        const base::Closure& task,
20                        base::TimeDelta delay) override;
21   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
22                                   const base::Closure& task,
23                                   base::TimeDelta delay) override;
24   // Always returns true to avoid triggering DCHECKs.
25   bool RunsTasksOnCurrentThread() const override;
26
27  protected:
28   ~NullTaskRunner() override;
29
30   DISALLOW_COPY_AND_ASSIGN(NullTaskRunner);
31 };
32
33 }  // namespace