Adds UKM for autofill attributes in form_structure.

components/autofill/core/browser/autofill_manager.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/autofill_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 1906 matching lines @@
   auto form_structure = base::MakeUnique<FormStructure>(form);
   form_structure->ParseFieldTypesFromAutocompleteAttributes();
   if (!form_structure->ShouldBeParsed())
     return false;
 
   // Ownership is transferred to |form_structures_| which maintains it until
   // the manager is Reset() or destroyed. It is safe to use references below
   // as long as receivers don't take ownership.
   form_structures_.push_back(std::move(form_structure));
   *parsed_form_structure = form_structures_.back().get();
-  (*parsed_form_structure)->DetermineHeuristicTypes();
+  (*parsed_form_structure)
+      ->DetermineHeuristicTypes(client_->GetUkmService(),
+                                pending_upload_request_url_);

[Mathieu, 2017/03/27 18:58:55]

FormStructure::source_url is what you need, so can be internal?

[csashi, 2017/03/27 23:37:43]

Done.

   return true;
 }
 
 int AutofillManager::BackendIDToInt(const std::string& backend_id) const {
   if (!base::IsValidGUID(backend_id))
     return 0;
 
   const auto found = backend_to_int_map_.find(backend_id);
   if (found == backend_to_int_map_.end()) {
     // Unknown one, make a new entry.
@@ skipping 259 matching lines @@
 }
 #endif  // ENABLE_FORM_DEBUG_DUMP
 
 void AutofillManager::LogCardUploadDecisionUkm(
     AutofillMetrics::CardUploadDecisionMetric upload_decision) {
   AutofillMetrics::LogCardUploadDecisionUkm(
       client_->GetUkmService(), pending_upload_request_url_, upload_decision);
 }
 
 }  // namespace autofill