Add types.private.ChromeDirectSetting and Connect it to preferencesPrivate.googleGeolocationAccessE…

chrome/browser/extensions/api/preference/chrome_direct_setting.h

+// Copyright (c) 2013 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_API_PREFERENCE_CHROME_DIRECT_SETTING_H__
+#define CHROME_BROWSER_EXTENSIONS_API_PREFERENCE_CHROME_DIRECT_SETTING_H__
+
+#include "base/containers/hash_tables.h"
+#include "chrome/browser/extensions/extension_function.h"
+
+class PrefService;
+
+namespace extensions {
+namespace chromedirectsetting {
+
+typedef base::hash_set<std::string> PreferenceWhitelist;
+
+// Base class to host instance method helpers.
+class DirectSettingFunctionBase : public SyncExtensionFunction {
+ protected:
+  explicit DirectSettingFunctionBase() {}
+  virtual ~DirectSettingFunctionBase() {}
+
+  // Returns the user pref service.
+  PrefService* GetPrefService();
+
+  // Returns true if the caller is a component extension.
+  bool IsCalledFromComponentExtension();
+
+  // Returns true if the preference is on the whitelist.
+  bool IsPreferenceOnWhitelist(const std::string &pref_key);
+
+ private:
+  // Creates the preference whitelist.
+  static PreferenceWhitelist CreatePreferenceWhitelist();
+
+  static const PreferenceWhitelist preference_whitelist_;
+  DISALLOW_COPY_AND_ASSIGN(DirectSettingFunctionBase);
+};
+
+class GetDirectSettingFunction : public DirectSettingFunctionBase {
+ public:
+  DECLARE_EXTENSION_FUNCTION("types.private.ChromeDirectSetting.get",
+                             TYPES_PRIVATE_CHROMEDIRECTSETTING_GET)
+
+  explicit GetDirectSettingFunction() {}
+
+ protected:
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  virtual ~GetDirectSettingFunction() {}
+  DISALLOW_COPY_AND_ASSIGN(GetDirectSettingFunction);
+};
+
+class SetDirectSettingFunction : public DirectSettingFunctionBase {
+ public:
+  DECLARE_EXTENSION_FUNCTION("types.private.ChromeDirectSetting.set",
+                             TYPES_PRIVATE_CHROMEDIRECTSETTING_SET)
+
+  explicit SetDirectSettingFunction() {}
+
+ protected:
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  virtual ~SetDirectSettingFunction() {}
+  DISALLOW_COPY_AND_ASSIGN(SetDirectSettingFunction);
+};
+
+class ClearDirectSettingFunction : public DirectSettingFunctionBase {
+ public:
+  DECLARE_EXTENSION_FUNCTION("types.private.ChromeDirectSetting.clear",
+                             TYPES_PRIVATE_CHROMEDIRECTSETTING_CLEAR)
+
+  explicit ClearDirectSettingFunction() {}
+
+ protected:
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  virtual ~ClearDirectSettingFunction() {}
+  DISALLOW_COPY_AND_ASSIGN(ClearDirectSettingFunction);
+};
+
+}  // namespace chromedirectsetting
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_PREFERENCE_CHROME_DIRECT_SETTING_H__
+