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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// 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_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
#define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
#include <list>
#include <string>
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/sequenced_task_runner_helpers.h"
#include "storage/common/quota/quota_types.h"
class BrowsingDataQuotaHelper;
class Profile;
struct BrowsingDataQuotaHelperDeleter {
static void Destruct(const BrowsingDataQuotaHelper* helper);
};
// This class is an interface class to bridge between Cookies Tree and Unified
// Quota System. This class provides a way to get usage and quota information
// through the instance.
//
// Call Create to create an instance for a profile and call StartFetching with
// a callback to fetch information asynchronously.
//
// Parallel fetching is not allowed, a fetching task should start after end of
// previous task. All method of this class should called from UI thread.
class BrowsingDataQuotaHelper
: public base::RefCountedThreadSafe<BrowsingDataQuotaHelper,
BrowsingDataQuotaHelperDeleter> {
public:
// QuotaInfo contains host-based quota and usage information for persistent
// and temporary storage.
struct QuotaInfo {
QuotaInfo();
explicit QuotaInfo(const std::string& host);
QuotaInfo(const std::string& host,
int64 temporary_usage,
int64 persistent_usage,
int64 syncable_usage);
~QuotaInfo();
// Certain versions of MSVC 2008 have bad implementations of ADL for nested
// classes so they require these operators to be declared here instead of in
// the global namespace.
bool operator <(const QuotaInfo& rhs) const;
bool operator ==(const QuotaInfo& rhs) const;
std::string host;
int64 temporary_usage;
int64 persistent_usage;
int64 syncable_usage;
};
typedef std::list<QuotaInfo> QuotaInfoArray;
typedef base::Callback<void(const QuotaInfoArray&)> FetchResultCallback;
static BrowsingDataQuotaHelper* Create(Profile* profile);
virtual void StartFetching(const FetchResultCallback& callback) = 0;
virtual void RevokeHostQuota(const std::string& host) = 0;
protected:
explicit BrowsingDataQuotaHelper(base::MessageLoopProxy* io_thread_);
virtual ~BrowsingDataQuotaHelper();
private:
friend class base::DeleteHelper<BrowsingDataQuotaHelper>;
friend struct BrowsingDataQuotaHelperDeleter;
scoped_refptr<base::MessageLoopProxy> io_thread_;
DISALLOW_COPY_AND_ASSIGN(BrowsingDataQuotaHelper);
};
#endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
|
