Log observations of explicit UPI-VPA autocomplete hints.

components/autofill/core/browser/autofill_metrics_unittest.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_metrics.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 1480 matching lines @@
   {
     base::HistogramTester histogram_tester;
     autofill_manager_->OnFormsSeen(forms, TimeTicks());
     autofill_manager_->Reset();
     histogram_tester.ExpectBucketCount("Autofill.DeveloperEngagement",
                                        AutofillMetrics::FILLABLE_FORM_PARSED,
                                        1);
     histogram_tester.ExpectBucketCount(
         "Autofill.DeveloperEngagement",
         AutofillMetrics::FILLABLE_FORM_CONTAINS_TYPE_HINTS, 1);
+    histogram_tester.ExpectBucketCount(
+        "Autofill.DeveloperEngagement",
+        AutofillMetrics::FORM_CONTAINS_UPI_VPA_HINT, 0);
+  }
+
+  // Add a field with an author-specified UPI-VPA field type in the form.
+  test::CreateTestFormField("", "", "", "text", &field);
+  field.autocomplete_attribute = "upi-vpa";
+  forms.back().fields.push_back(field);
+
+  // Expect the "form parsed" metric, the "author-specified field type
+  // hints" metric, and the "author-specified upi-vpa type" metric to be logged.
+  {
+    base::HistogramTester histogram_tester;
+    autofill_manager_->OnFormsSeen(forms, TimeTicks());
+    autofill_manager_->Reset();
+    histogram_tester.ExpectBucketCount("Autofill.DeveloperEngagement",
+                                       AutofillMetrics::FILLABLE_FORM_PARSED,
+                                       1);
+    histogram_tester.ExpectBucketCount(
+        "Autofill.DeveloperEngagement",
+        AutofillMetrics::FILLABLE_FORM_CONTAINS_TYPE_HINTS, 1);
+    histogram_tester.ExpectBucketCount(
+        "Autofill.DeveloperEngagement",
+        AutofillMetrics::FORM_CONTAINS_UPI_VPA_HINT, 1);
   }
 }
 
 // Test that the profile count is logged correctly.
 TEST_F(AutofillMetricsTest, StoredProfileCount) {
   // The metric should be logged when the profiles are first loaded.
   {
     base::HistogramTester histogram_tester;
     personal_data_->LoadProfiles();
     histogram_tester.ExpectUniqueSample("Autofill.StoredProfileCount", 2, 1);
@@ skipping 2940 matching lines @@
   GURL url("https://www.google.com");
   std::map<std::string, int> metrics;
   metrics.insert(std::make_pair("metric", 1));
 
   EXPECT_FALSE(AutofillMetrics::LogUkm(
       ukm_service_test_harness.test_ukm_service(), url, "test_ukm", metrics));
   EXPECT_EQ(0U, ukm_service_test_harness.test_ukm_service()->sources_count());
 }
 
 }  // namespace autofill