Create an autofill Suggestion class

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 89c99cec7cc8f0e392c3397cf4847cbbfdb3b77a..b6e596ae3aed291beff37fbebef252d4f1c6d23e 100644
--- a/components/autofill/core/browser/autofill_metrics_unittest.cc
+++ b/components/autofill/core/browser/autofill_metrics_unittest.cc
@@ -893,13 +893,12 @@ TEST_F(AutofillMetricsTest, UserHappinessFormInteraction) {
   // Simulate editing an autofilled field.
   {
     base::HistogramTester histogram_tester;
-    PersonalDataManager::GUIDPair guid(
+    SuggestionBackendID guid(
         "00000000-0000-0000-0000-000000000001", 0);
-    PersonalDataManager::GUIDPair empty(std::string(), 0);
     autofill_manager_->FillOrPreviewForm(
         AutofillDriver::FORM_DATA_ACTION_FILL,
         0, form, form.fields.front(),
-        autofill_manager_->PackGUIDs(empty, guid));
+        autofill_manager_->MakeFrontendID(SuggestionBackendID(), guid));
     autofill_manager_->OnTextFieldDidChange(form, form.fields.front(),
                                             TimeTicks());
     // Simulate a second keystroke; make sure we don't log the metric twice.