Class

ExtensionErrorUtils
a utility class handling error message
FormatErrorMessageUTF16 써서 utf8 -> utf16바꾸는애들 다 대체하고싶음


ExtensionErrorReporter
error reporter using string16


ChromeContentUtilityClient class
chrome/utility/chrome_content_utility.[h|cc\
call Unpacker class
OnUnpackExtension

Unpacker class
chrome\common\extensions\unpakcer.[h|cc]
 - install extension by |Run()|
 - and create an instance of |Extensions|

ExtensionBuilder class
chrome\common\extensions\extension_builder.[h|cc]
 - To do unittest, we need a class instnace.
 - by using this class, we create a simple cass and set manifest data by |SetManifest()| and |SetID()| (seems that these two are essential)