Replaced enum strings with ints in Activity Log database

chrome/browser/extensions/activity_log/blocked_actions.h

 // Copyright (c) 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_BLOCKED_ACTIONS_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_BLOCKED_ACTIONS_H_
 
 #include "chrome/browser/extensions/activity_log/activity_actions.h"
 
 namespace extensions {
 
 // This class describes API calls that ran into permissions or quota problems.
 // See APIActions for API calls that succeeded.
 class BlockedAction : public Action {
  public:
+  // These values should not be changed. Append any additional values to the
+  // end with sequential numbers.
   enum Reason {
-      UNKNOWN,
-      ACCESS_DENIED,
-      QUOTA_EXCEEDED,
+      UNKNOWN = 0,
+      ACCESS_DENIED = 1,
+      QUOTA_EXCEEDED = 2,
   };
 
   static const char* kTableName;
   static const char* kTableContentFields[];
+  static const char* kTableFieldTypes[];
 
   // Create a new database table for storing BlockedActions, or update the
   // schema if it is out of date. Any existing data is preserved.
   static bool InitializeTable(sql::Connection* db);
 
   // You must supply the id, time, api_call, and reason.
   BlockedAction(const std::string& extension_id,
                 const base::Time& time,
                 const std::string& api_call,          // the blocked API call
                 const std::string& args,              // the arguments
                 const Reason reason,                  // the reason it's blocked
                 const std::string& extra);            // any extra logging info
 
   // Create a new BlockedAction from a database row.
   explicit BlockedAction(const sql::Statement& s);
 
   // Record the action in the database.
   virtual void Record(sql::Connection* db) OVERRIDE;
 
   // Print a BlockedAction as a string for debugging purposes.
   virtual std::string PrintForDebug() OVERRIDE;
 
   // Helper methods for recording the values into the db.
   const std::string& api_call() const { return api_call_; }
   const std::string& args() const { return args_; }
   const std::string& extra() const { return extra_; }
 
-  // Helper methods for handling the Reason.
+  // Helper method for debugging.
   std::string ReasonAsString() const;
-  static Reason StringAsReason(const std::string& reason);
 
  protected:
   virtual ~BlockedAction();
 
  private:
   std::string api_call_;
   std::string args_;
   Reason reason_;
   std::string extra_;
 
   DISALLOW_COPY_AND_ASSIGN(BlockedAction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_BLOCKED_ACTIONS_H_