Separate plugin_metadata from plugin_installer, thread-safe plugin_finder

chrome/browser/extensions/api/content_settings/content_settings_api.h

 // Copyright (c) 2012 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_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__
 #define CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__
 
 #include "chrome/browser/extensions/extension_function.h"
 
 class PluginFinder;
@@ skipping 47 matching lines @@
  protected:
   virtual ~GetResourceIdentifiersFunction() {}
 
   // ExtensionFunction:
   virtual bool RunImpl() OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtensionApiTest,
                            ContentSettingsGetResourceIdentifiers);
 
-  // Callback method that gets executed when both |finder| and |plugins|
+  // Callback method that gets executed when |plugins|
   // are asynchronously fetched.
-  void OnGotPlugins(const std::vector<webkit::WebPluginInfo>& plugins,
-                    PluginFinder* finder);
+  void OnGotPlugins(const std::vector<webkit::WebPluginInfo>& plugins);
 
   // Used to override the global plugin list in tests.
   static void SetPluginsForTesting(
       const std::vector<webkit::WebPluginInfo>* plugins);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__