[Activity log] Generalize the whitelist for keeping arguments

chrome/browser/extensions/activity_log/counting_policy.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 CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_COUNTING_POLICY_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_COUNTING_POLICY_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 82 matching lines @@
   void DoDeleteDatabase();
 
   // Cleans old records from the activity log database.
   bool CleanOlderThan(sql::Connection* db, const base::Time& cutoff);
 
   // Cleans unused interned strings from the database.  This should be run
   // after deleting rows from the main log table to clean out stale values.
   bool CleanStringTables(sql::Connection* db);
 
   // API calls for which complete arguments should be logged.
-  std::set<std::string> api_arg_whitelist_;
+  Util::ApiSet api_arg_whitelist_;
 
   // Tables for mapping strings to integers for shrinking database storage
   // requirements.  URLs are kept in a separate table from other strings to
   // make history clearing simpler.
   DatabaseStringTable string_table_;
   DatabaseStringTable url_table_;
 
   // Tracks any pending updates to be written to the database, if write
   // batching is turned on.  Should only be accessed from the database thread.
   ActionQueue queued_actions_;
@@ skipping 17 matching lines @@
 
   friend class CountingPolicyTest;
   FRIEND_TEST_ALL_PREFIXES(CountingPolicyTest, EarlyFlush);
   FRIEND_TEST_ALL_PREFIXES(CountingPolicyTest, MergingAndExpiring);
   FRIEND_TEST_ALL_PREFIXES(CountingPolicyTest, StringTableCleaning);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_COUNTING_POLICY_H_