Log observations of explicit UPI-VPA autocomplete hints.

components/autofill/core/browser/form_structure.cc

 // 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.
 
 #include "components/autofill/core/browser/form_structure.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 250 matching lines @@
 
   if (autocomplete_attribute_value == "tel-local-suffix")
     return HTML_TYPE_TEL_LOCAL_SUFFIX;
 
   if (autocomplete_attribute_value == "tel-extension")
     return HTML_TYPE_TEL_EXTENSION;
 
   if (autocomplete_attribute_value == "email")
     return HTML_TYPE_EMAIL;
 
+  if (autocomplete_attribute_value == "upi-vpa")
+    return HTML_TYPE_UPI_VPA;
+
   return HTML_TYPE_UNRECOGNIZED;
 }
 
 std::ostream& operator<<(
     std::ostream& out,
     const autofill::AutofillQueryResponseContents& response) {
   out << "upload_required: " << response.upload_required();
   for (const auto& field : response.field()) {
     out << "\nautofill_type: " << field.autofill_type();
   }
@@ skipping 12 matching lines @@
 
 FormStructure::FormStructure(const FormData& form)
     : form_name_(form.name),
       source_url_(form.origin),
       target_url_(form.action),
       autofill_count_(0),
       active_field_count_(0),
       upload_required_(USE_UPLOAD_RATES),
       has_author_specified_types_(false),
       has_author_specified_sections_(false),
+      has_author_specified_upi_vpa_hint_(false),
       was_parsed_for_autocomplete_attributes_(false),
       has_password_field_(false),
       is_form_tag_(form.is_form_tag),
       is_formless_checkout_(form.is_formless_checkout),
       all_fields_are_passwords_(true) {
   // Copy the form fields.
   std::map<base::string16, size_t> unique_names;
   for (const FormFieldData& field : form.fields) {
     if (!ShouldSkipField(field))
       ++active_field_count_;
@@ skipping 46 matching lines @@
 
   if (IsAutofillable()) {
     AutofillMetrics::LogDeveloperEngagementMetric(
         AutofillMetrics::FILLABLE_FORM_PARSED);
     if (has_author_specified_types_) {
       AutofillMetrics::LogDeveloperEngagementMetric(
           AutofillMetrics::FILLABLE_FORM_CONTAINS_TYPE_HINTS);
     }
   }
 
+  if (has_author_specified_upi_vpa_hint_) {
+    AutofillMetrics::LogDeveloperEngagementMetric(
+        AutofillMetrics::FORM_CONTAINS_UPI_VPA_HINT);
+  }
+
   AutofillMetrics::LogDetermineHeuristicTypesTiming(
       base::TimeTicks::Now() - determine_heuristic_types_start_time);
 }
 
 bool FormStructure::EncodeUploadRequest(
     const ServerFieldTypeSet& available_field_types,
     bool form_was_autofilled,
     const std::string& login_form_signature,
     bool observed_submission,
     AutofillUploadContents* upload) const {
@@ skipping 501 matching lines @@
       }
     }
   }
 }
 
 void FormStructure::ParseFieldTypesFromAutocompleteAttributes() {
   const std::string kDefaultSection = "-default";
 
   has_author_specified_types_ = false;
   has_author_specified_sections_ = false;
+  has_author_specified_upi_vpa_hint_ = false;
   for (const auto& field : fields_) {
     // To prevent potential section name collisions, add a default suffix for
     // other fields.  Without this, 'autocomplete' attribute values
     // "section--shipping street-address" and "shipping street-address" would be
     // parsed identically, given the section handling code below.  We do this
     // before any validation so that fields with invalid attributes still end up
     // in the default section.  These default section names will be overridden
     // by subsequent heuristic parsing steps if there are no author-specified
     // section names.
     field->set_section(kDefaultSection);
@@ skipping 17 matching lines @@
 
     // The final token must be the field type.
     // If it is not one of the known types, abort.
     DCHECK(!tokens.empty());
 
     // Per the spec, the tokens are parsed in reverse order.
     std::string field_type_token = tokens.back();
     tokens.pop_back();
     HtmlFieldType field_type =
         FieldTypeFromAutocompleteAttributeValue(field_type_token, *field);
+    if (field_type == HTML_TYPE_UPI_VPA) {
+      has_author_specified_upi_vpa_hint_ = true;
+      // TODO(crbug/702223): Flesh out support for UPI-VPA.
+      field_type = HTML_TYPE_UNRECOGNIZED;
+    }
     if (field_type == HTML_TYPE_UNSPECIFIED)
       continue;
 
     // The preceding token, if any, may be a type hint.
     if (!tokens.empty() && IsContactTypeHint(tokens.back())) {
       // If it is, it must match the field type; otherwise, abort.
       // Note that an invalid token invalidates the entire attribute value, even
       // if the other tokens are valid.
       if (!ContactTypeHintMatchesFieldType(tokens.back(), field_type))
         continue;
@@ skipping 382 matching lines @@
               filtered_strings[0].at(prefix_len)) {
         // Mismatch found.
         return filtered_strings[i].substr(0, prefix_len);
       }
     }
   }
   return filtered_strings[0];
 }
 
 }  // namespace autofill