Alter the ActivityLog db table schemas.

chrome/browser/extensions/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_BLOCKED_ACTIONS_H_
 #define CHROME_BROWSER_EXTENSIONS_BLOCKED_ACTIONS_H_
 
 #include <string>
 #include "base/time.h"
 #include "chrome/browser/extensions/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:
   static const char* kTableName;
-  static const char* kTableStructure;
+  static const char* kTableBasicFields;
+  static const char* kTableContentFields[];
 
+  // 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+  // schema if it is out of date.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& blocked_action,    // the blocked API call
+                const std::string& api_call,          // the blocked API call
+                const std::string& args,              // the arguments
                 const std::string& reason,            // the reason it's blocked
                 const std::string& extra);            // any extra logging info
 
   // Record the action in the database.
   virtual void Record(sql::Connection* db) OVERRIDE;
 
   // Print a BlockedAction with il8n substitutions for display.
   virtual std::string PrettyPrintFori18n() OVERRIDE;
 
   // Print a BlockedAction as a regular string for debugging purposes.
   virtual std::string PrettyPrintForDebug() OVERRIDE;
 
   // Helper methods for recording the values into the db.
   const std::string& extension_id() const { return extension_id_; }
   const base::Time& time() const { return time_; }
   const std::string& reason() const { return reason_; }
-  const std::string& blocked_action() const { return blocked_action_; }
+  const std::string& api_call() const { return api_call_; }
+  const std::string& args() const { return args_; }
   const std::string& extra() const { return extra_; }
 
  protected:
   virtual ~BlockedAction();
 
  private:
   std::string extension_id_;
   base::Time time_;
-  std::string blocked_action_;
+  std::string api_call_;
+  std::string args_;
   std::string reason_;
   std::string extra_;
 
   DISALLOW_COPY_AND_ASSIGN(BlockedAction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BLOCKED_ACTIONS_H_