Add preliminary Autofill support for 'autocompletetype' sections.

chrome/browser/autofill/form_structure.h

Index: chrome/browser/autofill/form_structure.h
diff --git a/chrome/browser/autofill/form_structure.h b/chrome/browser/autofill/form_structure.h
index 92e4de9ed1ad13e46c2332cf0341640fdbf0eb60..11c0b2cb5c3fc0d91d927605257b811006ac3f43 100644
--- a/chrome/browser/autofill/form_structure.h
+++ b/chrome/browser/autofill/form_structure.h
@@ -155,6 +155,20 @@ class FormStructure {
   bool EncodeFormRequest(EncodeRequestType request_type,
                          buzz::XmlElement* encompassing_xml_element) const;
 
+  // Classifies each field in |fields_| based upon its |autocompletetype|
+  // attribute, if the attribute is available.  The association is stored into
+  // |map|.  Fills |found_attribute| with |true| if the attribute is available
+  // (and non-empty) for at least one field.  Fills |found_sections| with |true|
+  // if the attribute specifies a section for at least one field.
+  void ParseAutocompletetypeAttributes(bool* found_attribute,
+                                       bool* found_sections);
+
+  // Classifies each field in |fields_| into a logical section.
+  // Sections are identified by the heuristic that a logical section should not
+  // include multiple fields of the same autofill type (with some exceptions, as
+  // described in the implementation).
+  void IdentifySections();
+
   // The name of the form.
   string16 form_name_;