views: Textfield gets password reveal duration from ViewsDelegate

ui/views/controls/textfield/textfield_test_api.h

Index: ui/views/controls/textfield/textfield_test_api.h
diff --git a/ui/views/controls/textfield/textfield_test_api.h b/ui/views/controls/textfield/textfield_test_api.h
index 02f4d542757006d797571ace896b504b94706ce4..ecee9e4dbad0291392451aedf5aaf2218ebe8562 100644
--- a/ui/views/controls/textfield/textfield_test_api.h
+++ b/ui/views/controls/textfield/textfield_test_api.h
@@ -6,6 +6,7 @@
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_TEST_API_H_
 
 #include "base/macros.h"
+#include "base/time/time.h"
 #include "ui/views/controls/textfield/textfield.h"
 
 namespace views {
@@ -37,6 +38,8 @@ class TextfieldTestApi {
     return textfield_->touch_selection_controller_.get();
   }
 
+  base::TimeDelta GetPasswordRevealDuration() const;
+
  private:
   Textfield* textfield_;