[Autofill] Log the number of profiles considered/removed during dedupe.

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 621 matching lines @@
   // state of the form.
   static void LogAutofillFormSubmittedState(AutofillFormSubmittedState state);
 
   // This should be called when determining the heuristic types for a form's
   // fields.
   static void LogDetermineHeuristicTypesTiming(const base::TimeDelta& duration);
 
   // This should be called when parsing each form.
   static void LogParseFormTiming(const base::TimeDelta& duration);
 
+  // Log how many profiles were considered for the deduplication process.
+  static void LogNumberOfProfilesConsideredForDedupe(size_t num_considered);
+
+  // Log how many profiles were removed as part of the deduplication process.
+  static void LogNumberOfProfilesRemovedDuringDedupe(size_t num_removed);
+
   // Utility to autofill form events in the relevant histograms depending on
   // the presence of server and/or local data.
   class FormEventLogger {
    public:
     FormEventLogger(bool is_for_credit_card);
 
     inline void set_is_server_data_available(bool is_server_data_available) {
       is_server_data_available_ = is_server_data_available;
     }
 
@@ skipping 35 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_