content/public/browser/browser_thread_delegate.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 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_DELEGATE_H_
   6 #define CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_DELEGATE_H_
   7
   8 namespace 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).
  18 class 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_