GoogleChrome/chrome-app-samples — pull request #174 by ussuri (2013-11-20 21:04:44+00:00)
Title: Remove "commands" from the manifest for now

chrome.commands has landed only recently (currently in dev at best), so having it in an app sample can result in warnings for some users trying out the sample.

Also, there was a typo: "commands" was typed in as "command".