[Autofill] Split off AutofillDataModel as a subclass of FormData.

components/autofill/browser/autofill_data_model.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_AUTOFILL_BROWSER_AUTOFILL_DATA_MODEL_H_
+#define COMPONENTS_AUTOFILL_BROWSER_AUTOFILL_DATA_MODEL_H_
+
+#include <string>
+
+#include "components/autofill/browser/field_types.h"
+#include "components/autofill/browser/form_group.h"
+
+namespace autofill {
+
+class AutofillField;
+struct FormFieldData;
+
+// This class is an interface for the primary data models that back Autofill.
+// The information in objects of this class is managed by the
+// PersonalDataManager.
+class AutofillDataModel : public FormGroup {
+ public:
+  explicit AutofillDataModel(const std::string& guid);
+  virtual ~AutofillDataModel();
+
+  // Set |field_data|'s value based on |field| and contents of |this| (using
+  // data variant |variant|).
+  virtual void FillFormField(const AutofillField& field,
+                             size_t variant,
+                             const std::string& app_locale,
+                             FormFieldData* field_data) const = 0;
+
+  // Fills in select control with data matching |type| from |this|.
+  // Public for testing purposes.
+  void FillSelectControl(AutofillFieldType type,
+                         const std::string& app_locale,
+                         FormFieldData* field_data) const;
+
+  std::string guid() const { return guid_; }
+  void set_guid(const std::string& guid) { guid_ = guid; }
+
+ protected:
+  // Fills in a select control for a country from data in |this|. Returns true
+  // for success.
+  virtual bool FillCountrySelectControl(const std::string& app_locale,
+                                        FormFieldData* field_data) const;
+
+ private:
+  // A globally unique ID for this object.
+  std::string guid_;
+};
+
+}  // namespace autofill
+
+#endif  // COMPONENTS_AUTOFILL_BROWSER_AUTOFILL_DATA_MODEL_H_