[Autofill] Fill fields that have an autocomplete attributes even if not in a form.

components/autofill/core/common/form_data.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_COMMON_FORM_DATA_H_
 #define COMPONENTS_AUTOFILL_CORE_COMMON_FORM_DATA_H_
 
 #include <vector>
 
 #include "base/strings/string16.h"
@@ skipping 14 matching lines @@
 
   // Allow FormData to be a key in STL containers.
   bool operator<(const FormData& form) const;
 
   // The name of the form.
   base::string16 name;
   // The URL (minus query parameters) containing the form.
   GURL origin;
   // The action target of the form.
   GURL action;
-  // true if this form is a form tag.
+  // True if this form is a form tag.
   bool is_form_tag;
+  // True if the form is made of unowned fields in a non checkout flow.
+  bool is_formless_checkout;
   // A vector of all the input fields in the form.
   std::vector<FormFieldData> fields;
 };
 
 // For testing.
 std::ostream& operator<<(std::ostream& os, const FormData& form);
 
 // Serialize FormData. Used by the PasswordManager to persist FormData
 // pertaining to password forms. Serialized data is appended to |pickle|.
 void SerializeFormData(const FormData& form_data, base::Pickle* pickle);
 // Deserialize FormData. This assumes that |iter| is currently pointing to
 // the part of a pickle created by SerializeFormData. Returns true on success.
 bool DeserializeFormData(base::PickleIterator* iter, FormData* form_data);
 
 // Serialize FormData. Used by the PasswordManager to persist FormData
 // pertaining to password forms in base64 string. It is useful since in some
 // cases we need to store C strings without embedded '\0' symbols.
 void SerializeFormDataToBase64String(const FormData& form_data,
                                      std::string* output);
 // Deserialize FormData. Returns true on success.
 bool DeserializeFormDataFromBase64String(const base::StringPiece& input,
                                          FormData* form_data);
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_COMMON_FORM_DATA_H_