[Autofill] Add FormEvent logging for "will submit form".

components/autofill/core/browser/autofill_metrics_unittest.cc

Index: components/autofill/core/browser/autofill_metrics_unittest.cc
diff --git a/components/autofill/core/browser/autofill_metrics_unittest.cc b/components/autofill/core/browser/autofill_metrics_unittest.cc
index 409e9bdd5b5782426e5dc08d188a32f28ca042e9..674e77d3a254e22a1c8ba160c38220b9c9f5318c 100644
--- a/components/autofill/core/browser/autofill_metrics_unittest.cc
+++ b/components/autofill/core/browser/autofill_metrics_unittest.cc
@@ -696,6 +696,92 @@ TEST_F(AutofillMetricsTest, SaneMetricsWithCacheMismatch) {
       1);
 }
 
+// Test that we log user submitted forms appropriately.
+TEST_F(AutofillMetricsTest, LogIsFormUserSubmitted_UserSubmitted) {
+  // Set up our form data.
+  FormData form;
+  form.name = ASCIIToUTF16("TestForm");
+  form.origin = GURL("http://example.com/form.html");
+  form.action = GURL("http://example.com/submit.html");
+  form.user_submitted = true;
+
+  std::vector<ServerFieldType> heuristic_types, server_types;
+  FormFieldData field;
+
+  test::CreateTestFormField("Autofilled", "autofilled", "Elvis Aaron Presley",
+                            "text", &field);
+  field.is_autofilled = true;
+  form.fields.push_back(field);
+  heuristic_types.push_back(NAME_FIRST);
+  server_types.push_back(NO_SERVER_DATA);
+
+  test::CreateTestFormField("Autofill Failed", "autofillfailed",
+                            "buddy@gmail.com", "text", &field);
+  field.is_autofilled = false;
+  form.fields.push_back(field);
+  heuristic_types.push_back(PHONE_HOME_WHOLE_NUMBER);
+  server_types.push_back(EMAIL_ADDRESS);
+
+  test::CreateTestFormField("Phone", "phone", "2345678901", "tel", &field);
+  field.is_autofilled = true;
+  form.fields.push_back(field);
+  heuristic_types.push_back(PHONE_HOME_NUMBER);
+  server_types.push_back(PHONE_HOME_CITY_AND_NUMBER);
+
+  // Simulate having seen this form on page load.
+  autofill_manager_->AddSeenForm(form, heuristic_types, server_types);
+
+  // Simulate form submission.
+  base::HistogramTester histogram_tester;
+  autofill_manager_->WillSubmitForm(form, TimeTicks::Now());
+
+  // An autofillable form was user submitted.
+  histogram_tester.ExpectUniqueSample("Autofill.IsFormUserSubmitted", true, 1);
+}
+
+// Test that we log non-user submitted forms appropriately.
+TEST_F(AutofillMetricsTest, LogIsFormUserSubmitted_NotUserSubmitted) {
+  // Set up our form data.
+  FormData form;
+  form.name = ASCIIToUTF16("TestForm");
+  form.origin = GURL("http://example.com/form.html");
+  form.action = GURL("http://example.com/submit.html");
+  form.user_submitted = false;
+
+  std::vector<ServerFieldType> heuristic_types, server_types;
+  FormFieldData field;
+
+  test::CreateTestFormField("Autofilled", "autofilled", "Elvis Aaron Presley",
+                            "text", &field);
+  field.is_autofilled = true;
+  form.fields.push_back(field);
+  heuristic_types.push_back(NAME_FIRST);
+  server_types.push_back(NO_SERVER_DATA);
+
+  test::CreateTestFormField("Autofill Failed", "autofillfailed",
+                            "buddy@gmail.com", "text", &field);
+  field.is_autofilled = false;
+  form.fields.push_back(field);
+  heuristic_types.push_back(PHONE_HOME_WHOLE_NUMBER);
+  server_types.push_back(EMAIL_ADDRESS);
+
+  test::CreateTestFormField("Phone", "phone", "2345678901", "tel", &field);
+  field.is_autofilled = true;
+  form.fields.push_back(field);
+  heuristic_types.push_back(PHONE_HOME_NUMBER);
+  server_types.push_back(PHONE_HOME_CITY_AND_NUMBER);
+
+  // Simulate having seen this form on page load.
+  autofill_manager_->AddSeenForm(form, heuristic_types, server_types);
+
+  // Simulate form submission.
+  base::HistogramTester histogram_tester;
+  autofill_manager_->WillSubmitForm(form, TimeTicks::Now());
+
+  // An autofillable form was NOT user submitted.
+  histogram_tester.ExpectUniqueSample("Autofill.IsFormUserSubmitted", false, 1);
+}
+
 // Verify that when submitting an autofillable form, the stored profile metric
 // is logged.
 TEST_F(AutofillMetricsTest, StoredProfileCountAutofillableFormSubmission) {