Collecting UMA metrics for the UnmaskPrompt.

chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h

Index: chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h
diff --git a/chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h b/chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h
index 1df68bade0afdd1411b42f82424633a06cebb3bd..6cadd3fd169b1f3cee244ad988e713e71d55f270 100644
--- a/chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h
+++ b/chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h
@@ -45,19 +45,26 @@ class CardUnmaskPromptControllerImpl : public CardUnmaskPromptController {
                               const base::string16& year) const override;
 
  protected:
+  // Virtual so tests can suppress it.
+  virtual CardUnmaskPromptView* CreateAndShowView();
+  virtual void LoadRiskFingerprint();
+
   virtual void OnDidLoadRiskFingerprint(const std::string& risk_data);
 
   // Exposed for testing.
   CardUnmaskPromptView* view() { return card_unmask_view_; }
 
  private:
-  void LoadRiskFingerprint();
 
   content::WebContents* web_contents_;
   CreditCard card_;
   base::WeakPtr<CardUnmaskDelegate> delegate_;
   CardUnmaskPromptView* card_unmask_view_;
 
+  bool unmasking_success_;
+  bool unmasking_initial_should_store_pan_;
+  int unmasking_number_of_attempts_;
+
   CardUnmaskDelegate::UnmaskResponse pending_response_;
 
   base::WeakPtrFactory<CardUnmaskPromptControllerImpl> weak_pointer_factory_;