The way Google Chrome for iOS handles its refresh/stop functionality is a bit unorthodox. You have to first open a menu, and then tap the refresh or stop button to perform the action.
While it may seem like a small deal, I've found that this extra step is a bit frustrating in real world usage. Thankfully, as you may have guessed, the jailbreak community has responded with an answer.
EasyRefresh for Chrome is that answer — it's a jailbreak tweak that adds a traditional refresh button to Google Chrome for iOS...