Cleanup: Remove NOTIFICATION_EXTENSION_UNLOADED usage in MediaScanManager.

chrome/browser/extensions/error_console/error_console.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_ERROR_CONSOLE_ERROR_CONSOLE_H_
 #define CHROME_BROWSER_EXTENSIONS_ERROR_CONSOLE_ERROR_CONSOLE_H_
 
 #include <deque>
 #include <map>
 
@@ skipping 107 matching lines @@
   // removing all current errors.
   void Disable();
 
   // Called when the Developer Mode preference is changed; this is important
   // since we use this as a heuristic to determine if the console is enabled or
   // not.
   void OnPrefChanged();
 
   // ExtensionRegistry implementation. If the Apps Developer Tools app is
   // installed or uninstalled, we may need to turn the ErrorConsole on/off.
-  virtual void OnExtensionUnloaded(const Extension* extension) OVERRIDE;
-  virtual void OnExtensionLoaded(const Extension* extension) OVERRIDE;
+  virtual void OnExtensionUnloaded(content::BrowserContext* browser_context,
+                                   const Extension* extension) OVERRIDE;
+  virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
+                                 const Extension* extension) OVERRIDE;
 
   // Add manifest errors from an extension's install warnings.
   void AddManifestErrorsForExtension(const Extension* extension);
 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Whether or not the error console should record errors. This is true if
@@ skipping 28 matching lines @@
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       registry_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ErrorConsole);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ERROR_CONSOLE_ERROR_CONSOLE_H_