Upstream version 5.34.104.0
[platform/framework/web/crosswalk.git] / src / content / public / browser / utility_process_host_client.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_UTILITY_PROCESS_HOST_CLIENT_H_
6 #define CONTENT_PUBLIC_BROWSER_UTILITY_PROCESS_HOST_CLIENT_H_
7
8 #include "base/memory/ref_counted.h"
9 #include "content/common/content_export.h"
10
11 namespace IPC {
12 class Message;
13 }
14
15 namespace content {
16
17 // An interface to be implemented by consumers of the utility process to
18 // get results back.  All functions are called on the thread passed along
19 // to UtilityProcessHost.
20 class UtilityProcessHostClient
21     : public base::RefCountedThreadSafe<UtilityProcessHostClient> {
22  public:
23   // Called when the process has crashed.
24   virtual void OnProcessCrashed(int exit_code) {}
25
26   // Called when the process fails to launch, i.e. it has no exit code.
27   virtual void OnProcessLaunchFailed() {}
28
29   // Allow the client to filter IPC messages.
30   virtual bool OnMessageReceived(const IPC::Message& message) = 0;
31
32  protected:
33   friend class base::RefCountedThreadSafe<UtilityProcessHostClient>;
34
35   virtual ~UtilityProcessHostClient() {}
36 };
37
38 };  // namespace content
39
40 #endif  // CONTENT_PUBLIC_BROWSER_UTILITY_PROCESS_HOST_CLIENT_H_