Get rid of unnecessary forward declarations in components/autofill/

components/autofill/core/browser/webdata/autofill_change.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_WEBDATA_AUTOFILL_CHANGE_H__
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_WEBDATA_AUTOFILL_CHANGE_H__
 
 #include <vector>
 
 #include "components/autofill/core/browser/webdata/autofill_entry.h"
 
 namespace autofill {
 
 class AutofillProfile;
-class CreditCard;
 
 // For classic Autofill form fields, the KeyType is AutofillKey.
 // Autofill++ types such as AutofillProfile and CreditCard simply use an int.
 template <typename KeyType>
 class GenericAutofillChange {
  public:
   enum Type {
     ADD,
     UPDATE,
     REMOVE
@@ skipping 41 matching lines @@
   bool operator==(const AutofillProfileChange& change) const;
 
  private:
   // Weak reference, can be NULL.
   const AutofillProfile* profile_;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_WEBDATA_AUTOFILL_CHANGE_H__