1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// 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.
#ifndef CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_
#define CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_
#include <set>
#include "base/memory/ref_counted.h"
#include "base/timer/timer.h"
#include "content/public/browser/render_process_host_observer.h"
class Profile;
namespace content {
class RenderProcessHost;
}
// We use this class to destroy the off the record profile so that we can make
// sure it gets done asynchronously after all render process hosts are gone.
class ProfileDestroyer : public content::RenderProcessHostObserver {
public:
static void DestroyProfileWhenAppropriate(Profile* const profile);
static void DestroyOffTheRecordProfileNow(Profile* const profile);
private:
typedef std::set<content::RenderProcessHost*> HostSet;
typedef std::set<ProfileDestroyer*> DestroyerSet;
friend class base::RefCounted<ProfileDestroyer>;
ProfileDestroyer(Profile* const profile, HostSet* hosts);
~ProfileDestroyer() override;
// content::RenderProcessHostObserver override.
void RenderProcessHostDestroyed(content::RenderProcessHost* host) override;
// Called by the timer to cancel the pending destruction and do it now.
void DestroyProfile();
// Fetch the list of render process hosts that still refer to the profile.
// Return true if we found at least one, false otherwise.
static bool GetHostsForProfile(Profile* const profile, HostSet* hosts);
// We need access to all pending destroyers so we can cancel them.
static DestroyerSet* pending_destroyers_;
// We don't want to wait forever, so we have a cancellation timer.
base::Timer timer_;
// Used to count down the number of render process host left.
uint32 num_hosts_;
// The profile being destroyed. If it is set to NULL, it is a signal from
// another instance of ProfileDestroyer that this instance is canceled.
Profile* profile_;
base::WeakPtrFactory<ProfileDestroyer> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ProfileDestroyer);
};
#endif // CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_
|
