Can chrome.tabs.executeScript() be called from within a content script? [duplicate]

Question

I tried to look for this in the chrome documentation but I didn't see anything, especially in the "Security" section in the chrome.tabs documentation. The typical approach in examples I've seen is to send a message to the background page. The background page then calls chrome.tabs.executeScript(). If I can do it from the content script that would be a little easier.

Answer 1

Content scripts cannot call any Chrome API methods except couple from chrome.extension.* package.

Unless you are doing this to save content script filesize, why not just have that code you are planning to execute in a content script from the beginning?