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Side by Side Diff: chrome/browser/browsing_data/browsing_data_file_system_helper.h

Issue 442383002: Move storage-related files from webkit/ to new top-level directory storage/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 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 CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_ 5 #ifndef CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_
6 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_ 6 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_
7 7
8 #include <list> 8 #include <list>
9 #include <map> 9 #include <map>
10 #include <string> 10 #include <string>
11 11
12 #include "base/callback.h" 12 #include "base/callback.h"
13 #include "base/compiler_specific.h" 13 #include "base/compiler_specific.h"
14 #include "base/files/file_path.h" 14 #include "base/files/file_path.h"
15 #include "base/memory/ref_counted.h" 15 #include "base/memory/ref_counted.h"
16 #include "base/synchronization/lock.h" 16 #include "base/synchronization/lock.h"
17 #include "chrome/common/url_constants.h" 17 #include "chrome/common/url_constants.h"
18 #include "url/gurl.h" 18 #include "url/gurl.h"
19 #include "webkit/common/fileapi/file_system_types.h" 19 #include "storage/common/fileapi/file_system_types.h"
20 20
21 namespace fileapi { 21 namespace storage {
22 class FileSystemContext; 22 class FileSystemContext;
23 } 23 }
24 24
25 class Profile; 25 class Profile;
26 26
27 // Defines an interface for classes that deal with aggregating and deleting 27 // Defines an interface for classes that deal with aggregating and deleting
28 // browsing data stored in an origin's file systems. 28 // browsing data stored in an origin's file systems.
29 // BrowsingDataFileSystemHelper instances for a specific profile should be 29 // BrowsingDataFileSystemHelper instances for a specific profile should be
30 // created via the static Create method. Each instance will lazily fetch file 30 // created via the static Create method. Each instance will lazily fetch file
31 // system data when a client calls StartFetching from the UI thread, and will 31 // system data when a client calls StartFetching from the UI thread, and will
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45 public: 45 public:
46 // Detailed information about a file system, including it's origin GURL, 46 // Detailed information about a file system, including it's origin GURL,
47 // the amount of data (in bytes) for each sandboxed filesystem type. 47 // the amount of data (in bytes) for each sandboxed filesystem type.
48 struct FileSystemInfo { 48 struct FileSystemInfo {
49 explicit FileSystemInfo(const GURL& origin); 49 explicit FileSystemInfo(const GURL& origin);
50 ~FileSystemInfo(); 50 ~FileSystemInfo();
51 51
52 // The origin for which the information is relevant. 52 // The origin for which the information is relevant.
53 GURL origin; 53 GURL origin;
54 // FileSystemType to usage (in bytes) map. 54 // FileSystemType to usage (in bytes) map.
55 std::map<fileapi::FileSystemType, int64> usage_map; 55 std::map<storage::FileSystemType, int64> usage_map;
56 }; 56 };
57 57
58 // Creates a BrowsingDataFileSystemHelper instance for the file systems 58 // Creates a BrowsingDataFileSystemHelper instance for the file systems
59 // stored in |profile|'s user data directory. The BrowsingDataFileSystemHelper 59 // stored in |profile|'s user data directory. The BrowsingDataFileSystemHelper
60 // object will hold a reference to the Profile that's passed in, but is not 60 // object will hold a reference to the Profile that's passed in, but is not
61 // responsible for destroying it. 61 // responsible for destroying it.
62 // 62 //
63 // The BrowsingDataFileSystemHelper will not change the profile itself, but 63 // The BrowsingDataFileSystemHelper will not change the profile itself, but
64 // can modify data it contains (by removing file systems). 64 // can modify data it contains (by removing file systems).
65 static BrowsingDataFileSystemHelper* Create( 65 static BrowsingDataFileSystemHelper* Create(
66 fileapi::FileSystemContext* file_system_context); 66 storage::FileSystemContext* file_system_context);
67 67
68 // Starts the process of fetching file system data, which will call |callback| 68 // Starts the process of fetching file system data, which will call |callback|
69 // upon completion, passing it a constant list of FileSystemInfo objects. 69 // upon completion, passing it a constant list of FileSystemInfo objects.
70 // StartFetching must be called only in the UI thread; the provided Callback1 70 // StartFetching must be called only in the UI thread; the provided Callback1
71 // will likewise be executed asynchronously on the UI thread. 71 // will likewise be executed asynchronously on the UI thread.
72 // 72 //
73 // BrowsingDataFileSystemHelper takes ownership of the Callback1, and is 73 // BrowsingDataFileSystemHelper takes ownership of the Callback1, and is
74 // responsible for deleting it once it's no longer needed. 74 // responsible for deleting it once it's no longer needed.
75 virtual void StartFetching(const base::Callback< 75 virtual void StartFetching(const base::Callback<
76 void(const std::list<FileSystemInfo>&)>& callback) = 0; 76 void(const std::list<FileSystemInfo>&)>& callback) = 0;
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105 // Clone() is safe to call while StartFetching() is running. Clients of the 105 // Clone() is safe to call while StartFetching() is running. Clients of the
106 // newly created object must themselves execute StartFetching(), however: the 106 // newly created object must themselves execute StartFetching(), however: the
107 // copy will not have a pending fetch. 107 // copy will not have a pending fetch.
108 CannedBrowsingDataFileSystemHelper* Clone(); 108 CannedBrowsingDataFileSystemHelper* Clone();
109 109
110 // Manually adds a filesystem to the set of canned file systems that this 110 // Manually adds a filesystem to the set of canned file systems that this
111 // helper returns via StartFetching. If an origin contains both a temporary 111 // helper returns via StartFetching. If an origin contains both a temporary
112 // and a persistent filesystem, AddFileSystem must be called twice (once for 112 // and a persistent filesystem, AddFileSystem must be called twice (once for
113 // each file system type). 113 // each file system type).
114 void AddFileSystem(const GURL& origin, 114 void AddFileSystem(const GURL& origin,
115 fileapi::FileSystemType type, 115 storage::FileSystemType type,
116 int64 size); 116 int64 size);
117 117
118 // Clear this helper's list of canned filesystems. 118 // Clear this helper's list of canned filesystems.
119 void Reset(); 119 void Reset();
120 120
121 // True if no filesystems are currently stored. 121 // True if no filesystems are currently stored.
122 bool empty() const; 122 bool empty() const;
123 123
124 // Returns the number of currently stored filesystems. 124 // Returns the number of currently stored filesystems.
125 size_t GetFileSystemCount() const; 125 size_t GetFileSystemCount() const;
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148 std::list<FileSystemInfo> file_system_info_; 148 std::list<FileSystemInfo> file_system_info_;
149 149
150 // The callback passed in at the beginning of the StartFetching workflow so 150 // The callback passed in at the beginning of the StartFetching workflow so
151 // that it can be triggered via NotifyOnUIThread. 151 // that it can be triggered via NotifyOnUIThread.
152 base::Callback<void(const std::list<FileSystemInfo>&)> completion_callback_; 152 base::Callback<void(const std::list<FileSystemInfo>&)> completion_callback_;
153 153
154 DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataFileSystemHelper); 154 DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataFileSystemHelper);
155 }; 155 };
156 156
157 #endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_ 157 #endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_FILE_SYSTEM_HELPER_H_
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