Added a SchemaMap.

components/policy/core/common/schema.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 COMPONENTS_POLICY_CORE_COMMON_SCHEMA_H_
 #define COMPONENTS_POLICY_CORE_COMMON_SCHEMA_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 38 matching lines @@
   // the internal representation. If |schema| is invalid then an invalid Schema
   // is returned and |error| contains a reason for the failure.
   static Schema Parse(const std::string& schema, std::string* error);
 
   // Returns true if this Schema is valid. Schemas returned by the methods below
   // may be invalid, and in those cases the other methods must not be used.
   bool valid() const { return node_ != NULL; }
 
   base::Value::Type type() const;
 
+  // Returns true if |value| conforms to this Schema.
+  bool Matches(const base::Value& value) const;

[dconnelly, 2013/10/31 10:04:16]

nit: I think the word "validate" is the generally accepted verb for checking a
value against a schema. At least this is true in the XML world.

[Joao da Silva, 2013/10/31 13:34:56]

Done.

+
   // Used to iterate over the known properties of TYPE_DICTIONARY schemas.
   class POLICY_EXPORT Iterator {
    public:
     Iterator(const scoped_refptr<const InternalStorage>& storage,
              const internal::PropertiesNode* node);
     Iterator(const Iterator& iterator);
     ~Iterator();
 
     Iterator& operator=(const Iterator& iterator);
 
@@ skipping 45 matching lines @@
   Schema(const scoped_refptr<const InternalStorage>& storage,
          const internal::SchemaNode* node);
 
   scoped_refptr<const InternalStorage> storage_;
   const internal::SchemaNode* node_;
 };
 
 }  // namespace policy
 
 #endif  // COMPONENTS_POLICY_CORE_COMMON_SCHEMA_H_