browserswipe cydia tweak allows you to swipe to go back in Google Chrome!
One of the best features of Safari is now in the best browser for iOS. Only one finger is needed!
Swipe from the left edge of the screen to go back, swipe from the right edge of the screen to go forward.
This replaces the default card/tab switching.
Sadly there are no Safari-like animations.
This is only guaranteed to work with the current version of Google Chrome (as of release 35.0.1916.41)