Add metrics for new CBD dialog

components/browsing_data/core/browsing_data_utils.h

 // Copyright 2016 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_BROWSING_DATA_CORE_BROWSING_DATA_UTILS_H_
 #define COMPONENTS_BROWSING_DATA_CORE_BROWSING_DATA_UTILS_H_
 
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "components/browsing_data/core/clear_browsing_data_tab.h"
@@ skipping 33 matching lines @@
 
 // Calculate the begin time for the deletion range specified by |time_period|.
 base::Time CalculateBeginDeleteTime(TimePeriod time_period);
 
 // Calculate the end time for the deletion range specified by |time_period|.
 base::Time CalculateEndDeleteTime(TimePeriod time_period);
 
 // Records the UMA action of UI-triggered data deletion for |time_period|.
 void RecordDeletionForPeriod(TimePeriod time_period);
 
+// Records the UMA action of a change of the clear browsing data time period.
+void RecordTimePeriodChange(TimePeriod period);
+
+// Records the UMA action and histogram of a data deletion from |tab|.
+void RecordDeletionFromTab(ClearBrowsingDataTab tab);
+
 // Constructs the text to be displayed by a counter from the given |result|.
 // Currently this can only be used for counters for which the Result is
 // defined in components/browsing_data/core/counters.
 base::string16 GetCounterTextFromResult(
     const BrowsingDataCounter::Result* result);
 
 // Returns the preference that stores the time period.
 const char* GetTimePeriodPreferenceName(
     ClearBrowsingDataTab clear_browsing_data_tab);
 
 // Copies the name of the deletion preference corresponding to the given
 // |data_type| to |out_pref|. Returns false if no such preference exists.
 bool GetDeletionPreferenceFromDataType(
     BrowsingDataType data_type,
     ClearBrowsingDataTab clear_browsing_data_tab,
     std::string* out_pref);
 
 // Copies the deletion preferences for timeperiod, cache, history and cookies
 // to a separate preferences that are used to on the basic CBD tab.
 // This only happens the first time this method is called.
 void MigratePreferencesToBasic(PrefService* prefs);
 
 }  // namespace browsing_data
 
 #endif  // COMPONENTS_BROWSING_DATA_CORE_BROWSING_DATA_UTILS_H_