views: Textfield gets password reveal duration from ViewsDelegate

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 54391a380cb8ac1b51e0dd753f01014f045b569b..d534b0bbc6bd00fda44e142183b7b865551c0423 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -388,6 +388,9 @@ class VIEWS_EXPORT Textfield : public View,
   // Pastes the selection clipboard for the specified mouse event.
   void PasteSelectionClipboard(const ui::MouseEvent& event);
 
+  // Gets the password reveal duration.
+  base::TimeDelta GetPasswordRevealDuration();
+
   // The text model.
   std::unique_ptr<TextfieldModel> model_;
 
@@ -434,8 +437,7 @@ class VIEWS_EXPORT Textfield : public View,
   // The input flags of this text field.
   int text_input_flags_;
 
-  // The duration and timer to reveal the last typed password character.
-  base::TimeDelta password_reveal_duration_;
+  // The timer to reveal the last typed password character.
   base::OneShotTimer password_reveal_timer_;
 
   // Tracks whether a user action is being performed; i.e. OnBeforeUserAction()