Move ExtensionPrefs and friends to extensions/ directory.

chrome/browser/extensions/extension_pref_store.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_PREF_STORE_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
-
-#include <string>
-
-#include "base/prefs/value_map_pref_store.h"
-#include "chrome/browser/extensions/extension_pref_value_map.h"
-
-// A (non-persistent) PrefStore implementation that holds effective preferences
-// set by extensions. These preferences are managed by and fetched from an
-// ExtensionPrefValueMap.
-class ExtensionPrefStore : public ValueMapPrefStore,
-                           public ExtensionPrefValueMap::Observer {
- public:
-  // Constructs an ExtensionPrefStore for a regular or an incognito profile.
-  ExtensionPrefStore(ExtensionPrefValueMap* extension_pref_value_map,
-                     bool incognito_pref_store);
-
-  // Overrides for ExtensionPrefValueMap::Observer:
-  virtual void OnInitializationCompleted() OVERRIDE;
-  virtual void OnPrefValueChanged(const std::string& key) OVERRIDE;
-  virtual void OnExtensionPrefValueMapDestruction() OVERRIDE;
-
- protected:
-  virtual ~ExtensionPrefStore();
-
- private:
-  ExtensionPrefValueMap* extension_pref_value_map_;  // Weak pointer.
-  bool incognito_pref_store_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionPrefStore);
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_