Fill on account select in the password manager behind a flag

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 8a9350e9304bc369045479377850335096a0421e..02bfd51ab328169b849314e565b89fe6a74c14b6 100644
--- a/components/autofill/content/renderer/autofill_agent.cc
+++ b/components/autofill/content/renderer/autofill_agent.cc
@@ -610,7 +610,7 @@ void AutofillAgent::ShowSuggestions(const WebFormControlElement& element,
 
   const WebInputElement* input_element = toWebInputElement(&element);
   if (input_element) {
-    if (!input_element->isTextField() || input_element->isPasswordField())
+    if (!input_element->isTextField())
       return;
     if (!options.datalist_only && !input_element->suggestedValue().isEmpty())
       return;
@@ -643,6 +643,11 @@ void AutofillAgent::ShowSuggestions(const WebFormControlElement& element,
     return;
   }
 
+  // Password field elements should only have suggestions shown by the password
+  // autofill agent.
+  if (input_element && input_element->isPasswordField())
+    return;
+
   // If autocomplete is disabled at the field level, ensure that the native
   // UI won't try to show a warning, since that may conflict with a custom
   // popup. Note that we cannot use the WebKit method element.autoComplete()