| // Copyright (c) 2012 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/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/single_thread_task_runner.h" |
| |
| namespace base { |
| |
| // Helper class for tests that need to provide an implementation of a |
| // *TaskRunner class but don't actually care about tasks being run. |
| |
| class NullTaskRunner : public base::SingleThreadTaskRunner { |
| public: |
| NullTaskRunner(); |
| |
| virtual bool PostDelayedTask(const tracked_objects::Location& from_here, |
| const base::Closure& task, |
| base::TimeDelta delay) OVERRIDE; |
| virtual bool PostNonNestableDelayedTask( |
| const tracked_objects::Location& from_here, |
| const base::Closure& task, |
| base::TimeDelta delay) OVERRIDE; |
| // Always returns true to avoid triggering DCHECKs. |
| virtual bool RunsTasksOnCurrentThread() const OVERRIDE; |
| |
| protected: |
| virtual ~NullTaskRunner(); |
| |
| DISALLOW_COPY_AND_ASSIGN(NullTaskRunner); |
| }; |
| |
| } // namespace |