Perform install tasks for newly installed or upgraded component apps/extensions.

chrome/browser/extensions/component_loader.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_COMPONENT_LOADER_H_
 #define CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 47 matching lines @@
   std::string AddOrReplace(const FilePath& path);
 
   // Returns true if an extension with the specified id has been added.
   bool Exists(const std::string& id) const;
 
   // Unloads a component extension and removes it from the list of component
   // extensions to be loaded.
   void Remove(const FilePath& root_directory);
   void Remove(const std::string& id);
 
+  // Call this during test setup to load component extensions that have
+  // background pages for testing, which could otherwise interfere with tests.
+  static void EnableBackgroundExtensionsForTesting();
+
   // Adds the default component extensions.
   void AddDefaultComponentExtensions();
 
   static void RegisterUserPrefs(PrefService* prefs);
 
   // Parse the given JSON manifest. Returns NULL if it cannot be parsed, or if
   // if the result is not a DictionaryValue.
   DictionaryValue* ParseManifest(const std::string& manifest_contents) const;
 
   // Clear the list of registered extensions.
@@ skipping 24 matching lines @@
     // The component extension's ID.
     std::string extension_id;
   };
 
   std::string Add(const DictionaryValue* parsed_manifest,
                   const FilePath& root_directory);
 
   // Loads a registered component extension.
   const Extension* Load(const ComponentExtensionInfo& info);
 
+  void AddDefaultComponentExtensionsWithBackgroundPages();
   void AddFileManagerExtension();
 
 #if defined(OS_CHROMEOS)
   void AddGaiaAuthExtension();
 #endif
 
   // Add the enterprise webstore extension, or reload it if already loaded.
   void AddOrReloadEnterpriseWebStore();
 
   void AddChromeApp();
@@ skipping 10 matching lines @@
   PrefChangeRegistrar pref_change_registrar_;
 
   std::string script_bubble_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ComponentLoader);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_