Collecting UMA metrics for the UnmaskPrompt.

components/autofill/core/browser/autofill_metrics.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_METRICS_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_METRICS_H_
 
 #include <stddef.h>
 #include <string>
 
@@ skipping 266 matching lines @@
     FORM_EVENT_LOCAL_SUGGESTION_SUBMITTED_ONCE,
     FORM_EVENT_SERVER_SUGGESTION_SUBMITTED_ONCE,
     FORM_EVENT_MASKED_SERVER_CARD_SUGGESTION_SUBMITTED_ONCE,
     // A masked server card suggestion was selected to fill the form.
     FORM_EVENT_MASKED_SERVER_CARD_SUGGESTION_SELECTED,
     // Same as above but only triggered once per page load.
     FORM_EVENT_MASKED_SERVER_CARD_SUGGESTION_SELECTED_ONCE,
     NUM_FORM_EVENTS,
   };
 
+  // Events related to the Unmask Credit Card Prompt.
+  enum UnmaskPromptEvent {
+    // The prompt was shown.
+    UNMASK_PROMPT_SHOWN = 0,
+    // The prompt was closed without attempting to unmask the card.
+    UNMASK_PROMPT_CLOSED_NO_ATTEMPTS,
+    // The prompt was closed without unmasking the card, but with at least
+    // one attempt.
+    UNMASK_PROMPT_CLOSED_FAILED_TO_UNMASK,
+    // Successfully unmasked the card.
+    UNMASK_PROMPT_UNMASKED_CARD,
+    // Saved the card locally (masked card was upgraded to a full card).
+    UNMASK_PROMPT_SAVED_CARD_LOCALLY,
+    // User chose to opt in (checked the checkbox when it was empty).
+    // Only logged if there was an attempt to unmask.
+    UNMASK_PROMPT_LOCAL_SAVE_DID_OPT_IN,
+    // User kept opt in (left the checkbox checked).
+    // Only logged if there was an attempt to unmask.
+    UNMASK_PROMPT_LOCAL_SAVE_KEPT_OPT_IN,

[Evan Stade, 2015/03/17 01:49:15]

this name doesn't quite make sense to me. You can't keep opted in. It's more
like "didn't opt out".

[Walter Cacau, 2015/03/18 01:27:43]

Done.

+    // User chose to opt out (unchecked the checkbox when it was check).
+    // Only logged if there was an attempt to unmask.
+    UNMASK_PROMPT_LOCAL_SAVE_DID_OPT_OUT,
+    // User kept opt opt (left the checkbox unchecked).
+    // Only logged if there was an attempt to unmask.
+    UNMASK_PROMPT_LOCAL_SAVE_KEPT_OPT_OUT,
+    NUM_UNMASK_PROMT_EVENTS,
+  };
+
   // For measuring the network request time of various Wallet API calls. See
   // WalletClient::RequestType.
   enum WalletApiCallMetric {
     UNKNOWN_API_CALL,  // Catch all. Should never be used.
     ACCEPT_LEGAL_DOCUMENTS,
     AUTHENTICATE_INSTRUMENT,
     GET_FULL_WALLET,
     GET_WALLET_ITEMS,
     SAVE_TO_WALLET,
     NUM_WALLET_API_CALLS
@@ skipping 106 matching lines @@
   // This should be called when the Autofill dialog is closed.  |duration|
   // should be the time elapsed between the dialog being shown and it being
   // closed.  |dismissal_action| should indicate whether the user dismissed
   // the dialog by submitting the form data or by canceling.
   static void LogDialogUiDuration(const base::TimeDelta& duration,
                                   DialogDismissalAction dismissal_action);
 
   // Logs |event| to the UI events histogram.
   static void LogDialogUiEvent(DialogUiEvent event);
 
+  // Logs |event| to the unmask prompt events histogram.
+  static void LogUnmaskPromptEvent(UnmaskPromptEvent event);
+
   // Logs |metric| to the Wallet errors histogram.
   static void LogWalletErrorMetric(WalletErrorMetric metric);
 
   // Logs the network request time of Wallet API calls.
   static void LogWalletApiCallDuration(WalletApiCallMetric metric,
                                        const base::TimeDelta& duration);
 
   // Logs that the Wallet API call corresponding to |metric| was malformed.
   static void LogWalletMalformedResponseMetric(WalletApiCallMetric metric);
 
@@ skipping 88 matching lines @@
     bool logged_suggestion_filled_was_masked_server_card_;
   };
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(AutofillMetrics);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_METRICS_H_