Do not set autofill property for datalist options

components/autofill/content/renderer/autofill_agent.cc

Index: components/autofill/content/renderer/autofill_agent.cc
diff --git a/components/autofill/content/renderer/autofill_agent.cc b/components/autofill/content/renderer/autofill_agent.cc
index ab9bfae2cc956d59d0b93a3ca2b35b0ef60aa9d9..bab2b4d82a0f060e76402831f01677e38662e19a 100644
--- a/components/autofill/content/renderer/autofill_agent.cc
+++ b/components/autofill/content/renderer/autofill_agent.cc
@@ -488,8 +488,10 @@ void AutofillAgent::OnClearPreviewedForm() {
 
 void AutofillAgent::OnFillFieldWithValue(const base::string16& value) {
   WebInputElement* input_element = toWebInputElement(&element_);
-  if (input_element)
+  if (input_element) {
     FillFieldWithValue(value, input_element);
+    input_element->setAutofilled(true);
+  }
 }
 
 void AutofillAgent::OnPreviewFieldWithValue(const base::string16& value) {
@@ -674,7 +676,6 @@ void AutofillAgent::FillFieldWithValue(const base::string16& value,
                                        WebInputElement* node) {
   did_set_node_text_ = true;
   node->setEditingValue(value.substr(0, node->maxLength()));
-  node->setAutofilled(true);
 }
 
 void AutofillAgent::PreviewFieldWithValue(const base::string16& value,