IWYU for autofill suggestion.

components/autofill/core/browser/suggestion.h

 // Copyright 2014 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_SUGGESTION_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_SUGGESTION_H_
 
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 
 namespace autofill {
 
-class AutofillProfile;
-class CreditCard;
-
 struct Suggestion {
- public:
   enum MatchMode {
     PREFIX_MATCH,    // for prefix matched suggestions;
     SUBSTRING_MATCH  // for substring matched suggestions;
   };
 
   Suggestion();
 
   // Copy constructor for STL containers.
   Suggestion(const Suggestion& other);
 
@@ skipping 20 matching lines @@
 
   base::string16 value;
   base::string16 label;
   base::string16 icon;
   MatchMode match;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_SUGGESTION_H_