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Unified Diff: chrome/browser/extensions/extension_settings_noop_storage.h

Issue 7189029: Implement an initial extension settings API. (Closed) Base URL: http://git.chromium.org/git/chromium.git@trunk
Patch Set: Use base::Closure for storage callback, style fixes, mac/windows fixes Created 9 years, 6 months ago
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Index: chrome/browser/extensions/extension_settings_noop_storage.h
diff --git a/chrome/browser/extensions/extension_settings_noop_storage.h b/chrome/browser/extensions/extension_settings_noop_storage.h
new file mode 100644
index 0000000000000000000000000000000000000000..a75fa3cb2fc1e8cd1002434b8e82e19b43750ae0
--- /dev/null
+++ b/chrome/browser/extensions/extension_settings_noop_storage.h
@@ -0,0 +1,37 @@
+// Copyright (c) 2011 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_EXTENSIONS_EXTENSION_SETTINGS_NOOP_STORAGE_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_NOOP_STORAGE_H_
+#pragma once
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/extensions/extension_settings_storage.h"
+
+// Implementation of ExtensionSettingsStorage which does nothing, but behaves
+// as though each Get/Set were successful.
+// Intended to be wrapped by a Cache for trivial in-memory storage.
+class ExtensionSettingsNoopStorage : public ExtensionSettingsStorage {
+ public:
+ ExtensionSettingsNoopStorage() {}
+
+ virtual void DestroyEventually() OVERRIDE { delete this; }
+
+ virtual void Get(const std::string& key, Callback* callback) OVERRIDE;
+ virtual void Get(const ListValue& keys, Callback* callback) OVERRIDE;
+ virtual void Get(Callback* callback) OVERRIDE;
+ virtual void Set(
+ const std::string& key, const Value& value, Callback* callback) OVERRIDE;
+ virtual void Set(const DictionaryValue& values, Callback* callback) OVERRIDE;
+ virtual void Remove(const std::string& key, Callback* callback) OVERRIDE;
+ virtual void Remove(const ListValue& keys, Callback* callback) OVERRIDE;
+ virtual void Clear(Callback *callback) OVERRIDE;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(ExtensionSettingsNoopStorage);
+
+ ~ExtensionSettingsNoopStorage() {}
+};
+
+#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_NOOP_STORAGE_H_

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