userScripts.ScriptSource
The code or source file for a user script. This describes the object values of the "js" property inRegisteredUserScript.
Type
Values of this type are an object containing these properties:
fileOptionalstring. The path of the file containing the user script code. The path is relative to the extension's root directory.allFramesOptionalcode. JavaScript code for the user script.
file orcode must be specified, not both.