Move ExtensionPrefs and friends to extensions/ directory.

chrome/browser/extensions/extension_scoped_prefs.h

-// Copyright (c) 2012 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_SCOPED_PREFS_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SCOPED_PREFS_H_
-
-namespace extensions {
-
-class ExtensionScopedPrefs {
- public:
-  ExtensionScopedPrefs() {}
-  ~ExtensionScopedPrefs() {}
-
-  // Sets the pref |key| for extension |id| to |value|.
-  virtual void UpdateExtensionPref(const std::string& id,
-                                   const std::string& key,
-                                   base::Value* value) = 0;
-
-  // Deletes the pref dictionary for extension |id|.
-  virtual void DeleteExtensionPrefs(const std::string& id) = 0;
-
-  // Reads a boolean pref |pref_key| from extension with id |extension_id|.
-  virtual bool ReadPrefAsBoolean(const std::string& extension_id,
-                                 const std::string& pref_key,
-                                 bool* out_value) const = 0;
-
-  // Reads an integer pref |pref_key| from extension with id |extension_id|.
-  virtual bool ReadPrefAsInteger(const std::string& extension_id,
-                                 const std::string& pref_key,
-                                 int* out_value) const = 0;
-
-  // Reads a string pref |pref_key| from extension with id |extension_id|.
-  virtual bool ReadPrefAsString(const std::string& extension_id,
-                                const std::string& pref_key,
-                                std::string* out_value) const = 0;
-
-  // Reads a list pref |pref_key| from extension with id |extension_id|.
-  virtual bool ReadPrefAsList(const std::string& extension_id,
-                              const std::string& pref_key,
-                              const base::ListValue** out_value) const = 0;
-
-  // Reads a dictionary pref |pref_key| from extension with id |extension_id|.
-  virtual bool ReadPrefAsDictionary(
-      const std::string& extension_id,
-      const std::string& pref_key,
-      const base::DictionaryValue** out_value) const = 0;
-
-  // Returns true if the prefs contain an entry for an extension with id
-  // |extension_id|.
-  virtual bool HasPrefForExtension(const std::string& extension_id) const = 0;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SCOPED_PREFS_H_