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Side by Side Diff: content/public/common/child_process_host_delegate.h

Issue 7484017: mac component wip Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 8 years, 9 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ 5 #ifndef CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_
6 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ 6 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_
7 #pragma once 7 #pragma once
8 8
9 #include <string> 9 #include <string>
10 10
11 #include "content/common/content_export.h" 11 #include "content/common/content_export.h"
12 #include "ipc/ipc_channel.h" 12 #include "ipc/ipc_channel.h"
13 13
14 namespace content { 14 namespace content {
15 15
16 // Interface that all users of ChildProcessHost need to provide. 16 // Interface that all users of ChildProcessHost need to provide.
17 class ChildProcessHostDelegate : public IPC::Channel::Listener { 17 class CONTENT_EXPORT ChildProcessHostDelegate : public IPC::Channel::Listener {
18 public: 18 public:
19 virtual ~ChildProcessHostDelegate() {} 19 virtual ~ChildProcessHostDelegate() {}
20 20
21 // Delegates return true if it's ok to shut down the child process (which is 21 // Delegates return true if it's ok to shut down the child process (which is
22 // the default return value). The exception is if the host is in the middle of 22 // the default return value). The exception is if the host is in the middle of
23 // sending a request to the process, in which case the other side might think 23 // sending a request to the process, in which case the other side might think
24 // it's ok to shutdown, when really it's not. 24 // it's ok to shutdown, when really it's not.
25 CONTENT_EXPORT virtual bool CanShutdown(); 25 virtual bool CanShutdown();
26 26
27 // Notifies the derived class that we told the child process to kill itself. 27 // Notifies the derived class that we told the child process to kill itself.
28 virtual void ShutdownStarted() {} 28 virtual void ShutdownStarted() {}
29 29
30 // Called when the child process unexpected closes the IPC channel. Delegates 30 // Called when the child process unexpected closes the IPC channel. Delegates
31 // would normally delete the object in this case. 31 // would normally delete the object in this case.
32 virtual void OnChildDisconnected() {} 32 virtual void OnChildDisconnected() {}
33 }; 33 };
34 34
35 }; // namespace content 35 }; // namespace content
36 36
37 #endif // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ 37 #endif // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_
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