Implement an initial extension settings API.

chrome/browser/extensions/extension_settings_storage_unittest.h

Index: chrome/browser/extensions/extension_settings_storage_unittest.h
diff --git a/chrome/browser/extensions/extension_settings_storage_unittest.h b/chrome/browser/extensions/extension_settings_storage_unittest.h
new file mode 100644
index 0000000000000000000000000000000000000000..4fac5af4469657930d0cf905c2948ee4488a2f04
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+++ b/chrome/browser/extensions/extension_settings_storage_unittest.h
@@ -0,0 +1,65 @@
+// 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_STORAGE_UNITTEST_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_STORAGE_UNITTEST_H_
+#pragma once
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop.h"
+#include "base/task.h"
+#include "chrome/browser/extensions/extension_settings.h"
+#include "content/browser/browser_thread.h"
+
+// Parameter type for the value-parameterized tests.
+typedef void (*ExtensionSettingsStorageTestParam)(
+    ExtensionSettings* settings,
+    const std::string& extension_id,
+    const ExtensionSettings::Callback& callback);
+
+// Test fixture for ExtensionSettingsStorage tests.  Tests are defined in
+// extension_settings_storage_unittest.cc with configurations for both cached
+// and non-cached leveldb storage, and cached no-op storage.
+class ExtensionSettingsStorageTest
+  : public testing::TestWithParam<ExtensionSettingsStorageTestParam> {
+ public:
+  ExtensionSettingsStorageTest();
+  virtual ~ExtensionSettingsStorageTest();
+
+  virtual void SetUp() OVERRIDE;
+  virtual void TearDown() OVERRIDE;
+
+ protected:
+  ExtensionSettingsStorage* storage_;
+
+  std::string key1_;
+  std::string key2_;
+  std::string key3_;
+  scoped_ptr<Value> val1_;
+  scoped_ptr<Value> val2_;
+  scoped_ptr<Value> val3_;
+  scoped_ptr<ListValue> emptyList_;
+  scoped_ptr<ListValue> list1_;
+  scoped_ptr<ListValue> list2_;
+  scoped_ptr<ListValue> list12_;
+  scoped_ptr<ListValue> list13_;
+  scoped_ptr<ListValue> list123_;
+  scoped_ptr<DictionaryValue> emptyDict_;
+  scoped_ptr<DictionaryValue> dict1_;
+  scoped_ptr<DictionaryValue> dict12_;
+  scoped_ptr<DictionaryValue> dict123_;
+
+ private:
+  void SetStorage(ExtensionSettingsStorage* storage);
+
+  scoped_refptr<ExtensionSettings> settings_;
+  MessageLoopForUI* ui_message_loop_;
+  BrowserThread* ui_thread_;
+  BrowserThread* file_thread_;
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_STORAGE_UNITTEST_H_