class Browser::Chrome

def full_version
  # Each regex on its own line to enforce precedence.
  ua[%r[Chrome/([\d.]+)], 1] ||
    ua[%r[CriOS/([\d.]+)], 1] ||
    ua[%r[Safari/([\d.]+)], 1] ||
    ua[%r[AppleWebKit/([\d.]+)], 1] ||
    "0.0"
end