[WebPayments] Implementing Profile filter and dedupe

components/autofill/core/browser/form_group.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_CORE_BROWSER_FORM_GROUP_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_GROUP_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
@@ skipping 35 matching lines @@
   // type of that field, localized to the given |app_locale| if appropriate.
   virtual base::string16 GetInfo(const AutofillType& type,
                                  const std::string& app_locale) const;
 
   // Used to populate this FormGroup object with data.  Canonicalizes the data
   // according to the specified |app_locale| prior to storing, if appropriate.
   virtual bool SetInfo(const AutofillType& type,
                        const base::string16& value,
                        const std::string& app_locale);
 
+  // Returns true iff the string associated with |type| is nonempty.
+  bool HasInfo(ServerFieldType type) const;
+  bool HasInfo(const AutofillType& type) const;
+
  protected:
   // AutofillProfile needs to call into GetSupportedTypes() for objects of
   // non-AutofillProfile type, for which mere inheritance is insufficient.
   friend class AutofillProfile;
 
   // Returns a set of server field types for which this FormGroup can store
   // data.  This method is additive on |supported_types|.
   virtual void GetSupportedTypes(ServerFieldTypeSet* supported_types) const = 0;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_GROUP_H_