[views] Add checkmark throbber to card unmasking prompt

chrome/browser/ui/views/autofill/card_unmask_prompt_views.h

Index: chrome/browser/ui/views/autofill/card_unmask_prompt_views.h
diff --git a/chrome/browser/ui/views/autofill/card_unmask_prompt_views.h b/chrome/browser/ui/views/autofill/card_unmask_prompt_views.h
index 709fa28f35ad922144416c39865397dea90b9732..115c4160a6a699f02b5bfa54c5c007f9736f1b9c 100644
--- a/chrome/browser/ui/views/autofill/card_unmask_prompt_views.h
+++ b/chrome/browser/ui/views/autofill/card_unmask_prompt_views.h
@@ -16,6 +16,7 @@
 namespace views {
 class Label;
 class Checkbox;
+class CheckmarkThrobber;
 }
 
 namespace autofill {
@@ -132,6 +133,7 @@ class CardUnmaskPromptViews : public CardUnmaskPromptView,
   views::Checkbox* storage_checkbox_;
 
   FadeOutView* progress_overlay_;
+  views::CheckmarkThrobber* progress_throbber_;
   views::Label* progress_label_;
 
   gfx::SlideAnimation overlay_animation_;