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#ifndef CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_DELEGATE_H_
6#define CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_DELEGATE_H_
7
8namespace content {
9
10// A class with this type may be registered via
11// BrowserThread::SetDelegate.
12//
13// If registered as such, it will schedule to run Init() before the
14// message loop begins and the schedule InitAsync() as the first
15// task on its message loop (after the BrowserThread has done its own
16// initialization), and receive a CleanUp call right after the message
17// loop ends (and before the BrowserThread has done its own clean-up).
18class BrowserThreadDelegate {
19 public:
20  virtual ~BrowserThreadDelegate() {}
21
22  // Called prior to starting the message loop
23  virtual void Init() = 0;
24
25  // Called as the first task on the thread's message loop.
26  virtual void InitAsync() = 0;
27
28  // Called just after the message loop ends.
29  virtual void CleanUp() = 0;
30};
31
32}  // namespace content
33
34#endif  // CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_DELEGATE_H_
35