Move basic API permissions code out of //chrome

chrome/common/extensions/permissions/settings_override_permission.h

-// Copyright 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_COMMON_EXTENSIONS_PERMISSIONS_SETTINGS_OVERRIDE_PERMISSION_H_
-#define CHROME_COMMON_EXTENSIONS_PERMISSIONS_SETTINGS_OVERRIDE_PERMISSION_H_
-
-#include <string>
-
-#include "extensions/common/permissions/api_permission.h"
-
-namespace extensions {
-
-// Takes care of creating custom permission messages for extensions that
-// override settings.
-class SettingsOverrideAPIPermission : public APIPermission {
- public:
-  SettingsOverrideAPIPermission(
-      const APIPermissionInfo* permission, const std::string& setting_value);
-  virtual ~SettingsOverrideAPIPermission();
-
-  // APIPermission overrides.
-  virtual bool HasMessages() const OVERRIDE;
-  virtual PermissionMessages GetMessages() const OVERRIDE;
-  virtual bool Check(const APIPermission::CheckParam* param) const OVERRIDE;
-  virtual bool Contains(const APIPermission* rhs) const OVERRIDE;
-  virtual bool Equal(const APIPermission* rhs) const OVERRIDE;
-  virtual bool FromValue(const base::Value* value, std::string* error) OVERRIDE;
-  virtual scoped_ptr<base::Value> ToValue() const OVERRIDE;
-  virtual APIPermission* Clone() const OVERRIDE;
-  virtual APIPermission* Diff(const APIPermission* rhs) const OVERRIDE;
-  virtual APIPermission* Union(const APIPermission* rhs) const OVERRIDE;
-  virtual APIPermission* Intersect(const APIPermission* rhs) const OVERRIDE;
-  virtual void Write(IPC::Message* m) const OVERRIDE;
-  virtual bool Read(const IPC::Message* m, PickleIterator* iter) OVERRIDE;
-  virtual void Log(std::string* log) const OVERRIDE;
-
- private:
-  std::string setting_value_;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_COMMON_EXTENSIONS_PERMISSIONS_SETTINGS_OVERRIDE_PERMISSION_H_