Collecting UMA metrics for the UnmaskPrompt.

chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/ui/autofill/card_unmask_prompt_controller.h"
@@ skipping 40 matching lines @@
   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_;
 
   DISALLOW_COPY_AND_ASSIGN(CardUnmaskPromptControllerImpl);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_IMPL_H_