Log observations of explicit UPI-VPA autocomplete hints.

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 672 matching lines @@
   static void LogIsQueriedCreditCardFormSecure(bool is_secure);
 
   // Log how the converted wallet address was added to the local autofill
   // profiles.
   static void LogWalletAddressConversionType(WalletAddressConversionType type);
 
   // This should be called when the user selects the Form-Not-Secure warning
   // suggestion to show an explanation of the warning.
   static void LogShowedHttpNotSecureExplanation();
 
+  // Logs the observation of an explicit autocomplete="upi-vpa" form field
+  // type hint.
+  static void LogExplicitUpiVpaHint();
+
   // Logs the card upload decision ukm based on the specified |url| and
   // |upload_decision|.
   static void LogCardUploadDecisionUkm(
       ukm::UkmService* ukm_service,
       const GURL& url,
       AutofillMetrics::CardUploadDecisionMetric upload_decision);
 
   // Logs the the |ukm_entry_name| with the specified |url| and the specified
   // |metrics|. Returns whether the ukm was sucessfully logged.
   static bool LogUkm(ukm::UkmService* ukm_service,
@@ skipping 57 matching lines @@
     FormFieldData last_polled_field_;
   };
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(AutofillMetrics);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_METRICS_H_