Autofill: Set requirements for number of recognized fields in an autofillable form

components/autofill/core/browser/form_structure.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_STRUCTURE_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_STRUCTURE_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 25 matching lines @@
 
 namespace autofill {
 
 struct FormData;
 struct FormDataPredictions;
 
 // FormStructure stores a single HTML form together with the values entered
 // in the fields along with additional information needed by Autofill.
 class FormStructure {
  public:
-  FormStructure(const FormData& form);
+  explicit FormStructure(const FormData& form);
   virtual ~FormStructure();
 
   // Runs several heuristics against the form fields to determine their possible
   // types.
   void DetermineHeuristicTypes();
 
   // Encodes the XML upload request from this FormStructure.
   bool EncodeUploadRequest(const ServerFieldTypeSet& available_field_types,
                            bool form_was_autofilled,
                            std::string* encoded_xml) const;
@@ skipping 123 matching lines @@
   }
   UploadRequired upload_required() const { return upload_required_; }
 
   // Returns a FormData containing the data this form structure knows about.
   // |user_submitted| is currently always false.
   FormData ToFormData() const;
 
   bool operator==(const FormData& form) const;
   bool operator!=(const FormData& form) const;
 
+  void set_is_unowned() { is_unowned_ = true; }
+
  private:
   friend class FormStructureTest;
   FRIEND_TEST_ALL_PREFIXES(AutofillDownloadTest, QueryAndUploadTest);
 
   // 64-bit hash of the string - used in FormSignature and unit-tests.
   static std::string Hash64Bit(const std::string& str);
 
   enum EncodeRequestType {
     QUERY,
     UPLOAD,
@@ skipping 47 matching lines @@
   // to the stored upload rates.
   UploadRequired upload_required_;
 
   // Whether the form includes any field types explicitly specified by the site
   // author, via the |autocompletetype| attribute.
   bool has_author_specified_types_;
 
   // True if the form contains at least one password field.
   bool has_password_field_;
 
+  // True if the form is unowned, i.e. not for a <form>.
+  bool is_unowned_;
+
   DISALLOW_COPY_AND_ASSIGN(FormStructure);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_STRUCTURE_H_