Add "previewing on hover" support for password field.

components/autofill/content/renderer/form_autofill_util.cc

Index: components/autofill/content/renderer/form_autofill_util.cc
diff --git a/components/autofill/content/renderer/form_autofill_util.cc b/components/autofill/content/renderer/form_autofill_util.cc
index c9c6f8789db4e31532694666c8f93db64f4a4ede..1ba0aee506805aa80b5b4845f5d40e56ca873125 100644
--- a/components/autofill/content/renderer/form_autofill_util.cc
+++ b/components/autofill/content/renderer/form_autofill_util.cc
@@ -1047,14 +1047,16 @@ void PreviewForm(const FormData& form, const WebInputElement& element) {
 }
 
 bool ClearPreviewedFormWithElement(const WebInputElement& element,
-                                   bool was_autofilled) {
+                                   RequirementsMask requirements,
+                                   bool was_autofilled,
+                                   bool was_password_autofilled) {
   WebFormElement form_element = element.form();
   if (form_element.isNull())
     return false;
 
   std::vector<WebFormControlElement> control_elements;
-  ExtractAutofillableElements(form_element, REQUIRE_AUTOCOMPLETE,
-                              &control_elements);
+  //ExtractAutofillableElements(form_element, requirements, &control_elements);
+  ExtractAutofillableElements(form_element, REQUIRE_NONE, &control_elements);
   for (size_t i = 0; i < control_elements.size(); ++i) {
     // There might be unrelated elements in this form which have already been
     // auto-filled.  For example, the user might have already filled the address
@@ -1089,6 +1091,8 @@ bool ClearPreviewedFormWithElement(const WebInputElement& element,
       bool is_initiating_node = (element == *input_element);
       if (is_initiating_node)
         input_element->setAutofilled(was_autofilled);
+      else if (input_element->isPasswordField())
+        input_element->setAutofilled(was_password_autofilled);
       else
         input_element->setAutofilled(false);