This moves the ONC parsing code into chromeos/network/onc

chrome/browser/chromeos/network_settings/onc_mapper.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_CHROMEOS_NETWORK_SETTINGS_ONC_MAPPER_H_
-#define CHROME_BROWSER_CHROMEOS_NETWORK_SETTINGS_ONC_MAPPER_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-
-namespace base {
-class Value;
-class DictionaryValue;
-class ListValue;
-}
-
-namespace chromeos {
-namespace onc {
-
-struct OncValueSignature;
-
-// This class implements a DeepCopy of base::Values for ONC objects that
-// iterates over both the ONC signature and the object hierarchy. DCHECKs if a
-// field signature without value signature or an array signature without entry
-// signature is reached.
-//
-// The general term "map" is used here, as this class is meant as base class and
-// the copy behavior can be adapted by overriding the methods. By comparing the
-// address of a signature object to the list of signatures in "onc_signature.h",
-// accurate signature-specific translations or validations can be applied in the
-// overriding methods.
-//
-// The ONC validator and normalizer derive from this class and adapt the default
-// copy behavior.
-class Mapper {
- public:
-  Mapper();
-  virtual ~Mapper();
-
- protected:
-  // Calls |MapObject|, |MapArray| and |MapPrimitive| according to |onc_value|'s
-  // type. By default aborts on nested errors in arrays. Result of the mapping
-  // is returned. On error returns NULL.
-  virtual scoped_ptr<base::Value> MapValue(
-    const OncValueSignature& signature,
-    const base::Value& onc_value);
-
-  // Maps objects/dictionaries. By default calls |MapFields|, which recurses
-  // into each field of |onc_object|, and aborts on unknown fields. Result of
-  // the mapping is returned. On error returns NULL.
-  virtual scoped_ptr<base::DictionaryValue> MapObject(
-      const OncValueSignature& signature,
-      const base::DictionaryValue& onc_object);
-
-  // Maps primitive values like BinaryValue, StringValue, IntegerValue... (all
-  // but dictionaries and lists). By default copies |onc_primitive|. Result of
-  // the mapping is returned. On error returns NULL.
-  virtual scoped_ptr<base::Value> MapPrimitive(
-    const OncValueSignature& signature,
-    const base::Value& onc_primitive);
-
-  // Maps each field of the given |onc_object| according to
-  // |object_signature|. Adds the mapping of each field to |result| using
-  // |MapField| and drops unknown fields by default. Sets
-  // |found_unknown_field| to true if this dictionary contains any unknown
-  // fields. Set |nested_error_occured| to true if nested errors occured.
-  virtual void MapFields(
-      const OncValueSignature& object_signature,
-      const base::DictionaryValue& onc_object,
-      bool* found_unknown_field,
-      bool* nested_error_occured,
-      base::DictionaryValue* result);
-
-  // Maps the value |onc_value| of field |field_name| according to its field
-  // signature in |object_signature| using |MapValue|. Sets
-  // |found_unknown_field| to true if |field_name| cannot be found in
-  // |object_signature|, which by default is an error. Result of the mapping is
-  // returned. On error returns NULL.
-  virtual scoped_ptr<base::Value> MapField(
-      const std::string& field_name,
-      const OncValueSignature& object_signature,
-      const base::Value& onc_value,
-      bool* found_unknown_field);
-
-  // Maps the array |onc_array| according to |array_signature|, which defines
-  // the type of the entries. Maps each entry by calling |MapValue|. If any of
-  // the nested mappings failed, the flag |nested_error_occured| is set to true
-  // and the entry is dropped from the result. The resulting array is
-  // returned. On error returns NULL.
-  virtual scoped_ptr<base::ListValue> MapArray(
-      const OncValueSignature& array_signature,
-      const base::ListValue& onc_array,
-      bool* nested_error_occured);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(Mapper);
-};
-
-}  // namespace onc
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_NETWORK_SETTINGS_ONC_MAPPER_H_