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Side by Side Diff: webkit/browser/quota/quota_task.h

Issue 539143002: Migrate webkit/browser/ to storage/browser/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix android build Created 6 years, 3 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 WEBKIT_BROWSER_QUOTA_QUOTA_TASK_H_ 5 #include "storage/browser/quota/quota_task.h"
6 #define WEBKIT_BROWSER_QUOTA_QUOTA_TASK_H_
7
8 #include <set>
9
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/sequenced_task_runner_helpers.h"
14 #include "webkit/browser/storage_browser_export.h"
15
16 namespace base {
17 class SingleThreadTaskRunner;
18 class TaskRunner;
19 }
20
21 namespace storage {
22
23 class QuotaTaskObserver;
24
25 // A base class for quota tasks.
26 // TODO(kinuko): Revise this using base::Callback.
27 class QuotaTask {
28 public:
29 void Start();
30
31 protected:
32 explicit QuotaTask(QuotaTaskObserver* observer);
33 virtual ~QuotaTask();
34
35 // The task body.
36 virtual void Run() = 0;
37
38 // Called upon completion, on the original message loop.
39 virtual void Completed() = 0;
40
41 // Called when the task is aborted.
42 virtual void Aborted() {}
43
44 void CallCompleted();
45
46 // Call this to delete itself.
47 void DeleteSoon();
48
49 QuotaTaskObserver* observer() const { return observer_; }
50 base::SingleThreadTaskRunner* original_task_runner() const {
51 return original_task_runner_.get();
52 }
53
54 private:
55 friend class base::DeleteHelper<QuotaTask>;
56 friend class QuotaTaskObserver;
57
58 void Abort();
59 QuotaTaskObserver* observer_;
60 scoped_refptr<base::SingleThreadTaskRunner> original_task_runner_;
61 bool delete_scheduled_;
62 };
63
64 class STORAGE_EXPORT QuotaTaskObserver {
65 protected:
66 friend class QuotaTask;
67
68 QuotaTaskObserver();
69 virtual ~QuotaTaskObserver();
70
71 void RegisterTask(QuotaTask* task);
72 void UnregisterTask(QuotaTask* task);
73
74 typedef std::set<QuotaTask*> TaskSet;
75 TaskSet running_quota_tasks_;
76 };
77 }
78
79 #endif // WEBKIT_BROWSER_QUOTA_QUOTA_TASK_H_
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