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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ | 5 #ifndef CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ |
6 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ | 6 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
| 12 #include "base/memory/memory_pressure_listener.h" |
12 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
13 #include "content/common/content_export.h" | 14 #include "content/common/content_export.h" |
14 #include "content/common/storage_partition_service.mojom.h" | 15 #include "content/common/storage_partition_service.mojom.h" |
15 #include "content/public/browser/dom_storage_context.h" | 16 #include "content/public/browser/dom_storage_context.h" |
16 #include "url/origin.h" | 17 #include "url/origin.h" |
17 | 18 |
18 namespace base { | 19 namespace base { |
19 class FilePath; | 20 class FilePath; |
20 } | 21 } |
21 | 22 |
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66 // Called when the BrowserContext/Profile is going away. | 67 // Called when the BrowserContext/Profile is going away. |
67 void Shutdown(); | 68 void Shutdown(); |
68 | 69 |
69 void Flush(); | 70 void Flush(); |
70 | 71 |
71 // See mojom::StoragePartitionService interface. | 72 // See mojom::StoragePartitionService interface. |
72 void OpenLocalStorage(const url::Origin& origin, | 73 void OpenLocalStorage(const url::Origin& origin, |
73 mojom::LevelDBObserverPtr observer, | 74 mojom::LevelDBObserverPtr observer, |
74 mojom::LevelDBWrapperRequest request); | 75 mojom::LevelDBWrapperRequest request); |
75 | 76 |
| 77 // Called on UI thread when the system is under memory pressure. |
| 78 void OnMemoryPressure( |
| 79 base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level); |
| 80 |
76 private: | 81 private: |
77 friend class DOMStorageMessageFilter; // for access to context() | 82 friend class DOMStorageMessageFilter; // for access to context() |
78 friend class SessionStorageNamespaceImpl; // ditto | 83 friend class SessionStorageNamespaceImpl; // ditto |
79 friend class base::RefCountedThreadSafe<DOMStorageContextWrapper>; | 84 friend class base::RefCountedThreadSafe<DOMStorageContextWrapper>; |
80 | 85 |
81 ~DOMStorageContextWrapper() override; | 86 ~DOMStorageContextWrapper() override; |
82 DOMStorageContextImpl* context() const { return context_.get(); } | 87 DOMStorageContextImpl* context() const { return context_.get(); } |
83 | 88 |
84 // An inner class to keep all mojo-ish details together and not bleed them | 89 // An inner class to keep all mojo-ish details together and not bleed them |
85 // through the public interface. | 90 // through the public interface. |
86 class MojoState; | 91 class MojoState; |
87 std::unique_ptr<MojoState> mojo_state_; | 92 std::unique_ptr<MojoState> mojo_state_; |
88 | 93 |
| 94 // To receive memory pressure signals. |
| 95 std::unique_ptr<base::MemoryPressureListener> memory_pressure_listener_; |
| 96 |
89 scoped_refptr<DOMStorageContextImpl> context_; | 97 scoped_refptr<DOMStorageContextImpl> context_; |
90 | 98 |
91 DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContextWrapper); | 99 DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContextWrapper); |
92 }; | 100 }; |
93 | 101 |
94 } // namespace content | 102 } // namespace content |
95 | 103 |
96 #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ | 104 #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_ |
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