Adds UKM for autofill attributes in form_structure.

components/autofill/core/browser/autofill_manager_unittest.cc

Index: components/autofill/core/browser/autofill_manager_unittest.cc
diff --git a/components/autofill/core/browser/autofill_manager_unittest.cc b/components/autofill/core/browser/autofill_manager_unittest.cc
index dfa9bad84d3f6f987078a8c7644f26a55d5e161a..a4416160852865b4a01d3b73f1253e1a9687dfd1 100644
--- a/components/autofill/core/browser/autofill_manager_unittest.cc
+++ b/components/autofill/core/browser/autofill_manager_unittest.cc
@@ -3456,7 +3456,7 @@ TEST_F(AutofillManagerTest, OnLoadedServerPredictions) {
   // Simulate having seen this form on page load.
   // |form_structure| will be owned by |autofill_manager_|.
   TestFormStructure* form_structure = new TestFormStructure(form);
-  form_structure->DetermineHeuristicTypes();
+  form_structure->DetermineHeuristicTypes(nullptr /* ukm_service */, GURL());
   autofill_manager_->AddSeenForm(base::WrapUnique(form_structure));
 
   // Similarly, a second form.
@@ -3476,7 +3476,7 @@ TEST_F(AutofillManagerTest, OnLoadedServerPredictions) {
   form2.fields.push_back(field);
 
   TestFormStructure* form_structure2 = new TestFormStructure(form2);
-  form_structure2->DetermineHeuristicTypes();
+  form_structure2->DetermineHeuristicTypes(nullptr /* ukm_service */, GURL());
   autofill_manager_->AddSeenForm(base::WrapUnique(form_structure2));
 
   AutofillQueryResponseContents response;
@@ -3529,7 +3529,7 @@ TEST_F(AutofillManagerTest, OnLoadedServerPredictions_ResetManager) {
   // Simulate having seen this form on page load.
   // |form_structure| will be owned by |autofill_manager_|.
   TestFormStructure* form_structure = new TestFormStructure(form);
-  form_structure->DetermineHeuristicTypes();
+  form_structure->DetermineHeuristicTypes(nullptr /* ukm_service */, GURL());
   autofill_manager_->AddSeenForm(base::WrapUnique(form_structure));
 
   AutofillQueryResponseContents response;
@@ -3567,7 +3567,7 @@ TEST_F(AutofillManagerTest, FormSubmittedServerTypes) {
   // Simulate having seen this form on page load.
   // |form_structure| will be owned by |autofill_manager_|.
   TestFormStructure* form_structure = new TestFormStructure(form);
-  form_structure->DetermineHeuristicTypes();
+  form_structure->DetermineHeuristicTypes(nullptr /* ukm_service */, GURL());
 
   // Clear the heuristic types, and instead set the appropriate server types.
   std::vector<ServerFieldType> heuristic_types, server_types;
@@ -5771,7 +5771,7 @@ TEST_F(AutofillManagerTest, DisplaySuggestionsForUpdatedServerTypedForm) {
   form.fields.push_back(field);
 
   auto form_structure = base::MakeUnique<TestFormStructure>(form);
-  form_structure->DetermineHeuristicTypes();
+  form_structure->DetermineHeuristicTypes(nullptr /* ukm_service */, GURL());
   // Make sure the form can not be autofilled now.
   ASSERT_EQ(0u, form_structure->autofill_count());
   for (size_t idx = 0; idx < form_structure->field_count(); ++idx) {