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// Copyright (c) 2010 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_TEST_TESTING_PREF_SERVICE_H_
#define CHROME_TEST_TESTING_PREF_SERVICE_H_
#include <chrome/browser/pref_service.h>
// A PrefService subclass for testing. It operates totally in memory and
// provides additional API for manipulating preferences at the different levels
// (managed, extension, user) conveniently.
class TestingPrefService : public PrefService {
public:
// Create an empty instance.
TestingPrefService();
// Read the value of a preference from the managed layer. Returns NULL if the
// preference is not defined at the managed layer.
const Value* GetManagedPref(const wchar_t* path);
// Set a preference on the managed layer and fire observers if the preference
// changed. Assumes ownership of |value|.
void SetManagedPref(const wchar_t* path, Value* value);
// Clear the preference on the managed layer and fire observers if the
// preference has been defined previously.
void RemoveManagedPref(const wchar_t* path);
// Similar to the above, but for user preferences.
const Value* GetUserPref(const wchar_t* path);
void SetUserPref(const wchar_t* path, Value* value);
void RemoveUserPref(const wchar_t* path);
private:
// Reads the value of the preference indicated by |path| from |pref_store|.
// Returns NULL if the preference was not found.
const Value* GetPref(PrefStore* pref_store, const wchar_t* path);
// Sets the value for |path| in |pref_store|.
void SetPref(PrefStore* pref_store, const wchar_t* path, Value* value);
// Removes the preference identified by |path| from |pref_store|.
void RemovePref(PrefStore* pref_store, const wchar_t* path);
// Pointers to the pref stores our value store uses.
PrefStore* managed_prefs_;
PrefStore* user_prefs_;
};
#endif // CHROME_TEST_TESTING_PREF_SERVICE_H_
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