Suffixed histograms for SB2.DatabaseKilobytes and SB2.PrefixSetKilobytes

chrome/browser/safe_browsing/safe_browsing_database.h

Index: chrome/browser/safe_browsing/safe_browsing_database.h
diff --git a/chrome/browser/safe_browsing/safe_browsing_database.h b/chrome/browser/safe_browsing/safe_browsing_database.h
index 32d01eb76a25996be6f82e01aebda6f6ae7641e9..a2f085fa5535ce0ce64032518a0539c063627755 100644
--- a/chrome/browser/safe_browsing/safe_browsing_database.h
+++ b/chrome/browser/safe_browsing/safe_browsing_database.h
@@ -497,7 +497,7 @@ class SafeBrowsingDatabaseNew : public SafeBrowsingDatabase {
   // |write_failure_type| provides a caller-specific error code to be used on
   // failure.
   void WritePrefixSet(const base::FilePath& db_filename,
-                      const safe_browsing::PrefixSet* prefix_set,
+                      PrefixSetId prefix_set_id,
                       FailureType write_failure_type);
 
   // Loads the given full-length hashes to the given whitelist.  If the number
@@ -562,6 +562,15 @@ class SafeBrowsingDatabaseNew : public SafeBrowsingDatabase {
   // synchronization are not problematic).
   PrefixGetHashCache* GetUnsynchronizedPrefixGetHashCacheForTesting();
 
+  // Records |sample| for |histogram_name_base| suffixed by the appropriate
+  // histogram suffix for |(prefix_set_id|whitelist_id)|.
+  void RecordPrefixSetCountsHistogram(const std::string& histogram_name_base,
+                                      PrefixSetId prefix_set_id,
+                                      int sample);
+  void RecordSBWhitelistCountsHistogram(const std::string& histogram_name_base,
+                                        SBWhitelistId whitelist_id,
+                                        int sample);
+
   base::ThreadChecker thread_checker_;
 
   ThreadSafeStateManager state_manager_;