Do not autofill element when there is no autofill suggestion from profile

components/autofill/core/browser/autofill_manager.cc

Index: components/autofill/core/browser/autofill_manager.cc
diff --git a/components/autofill/core/browser/autofill_manager.cc b/components/autofill/core/browser/autofill_manager.cc
index bfb8d492ca0e0cdfd936c8c9095c1ad72184f021..bc5356b97df92b75f98fa8e8ecb7247c97c0f3ac 100644
--- a/components/autofill/core/browser/autofill_manager.cc
+++ b/components/autofill/core/browser/autofill_manager.cc
@@ -557,6 +557,10 @@ void AutofillManager::FillOrPreviewForm(
         // Mark the cached field as autofilled, so that we can detect when a
         // user edits an autofilled field (for metrics).
         form_structure->field(i)->is_autofilled = true;
+        // Mark the "select-one" field as autofilled when a non-empty value is
+        // assigned to it.

[Ilya Sherman, 2014/06/02 23:51:00]

Is there any harm to doing this for all the autofilled fields, rather than only
for <select> fields?

+        if (result.fields[i].form_control_type == "select-one")
+          result.fields[i].is_autofilled = true;
 
         if (should_notify)
           manager_delegate_->DidFillOrPreviewField(value, profile_full_name);