opens a new tab on Google Chrome and renders given HTML via command-line arguments.

push-html.applescript

on replace {src, tg, rp}
  set oldDel to AppleScript's text item delimiters
  set AppleScript's text item delimiters to tg
  set myList to text items of src
  set AppleScript's text item delimiters to rp
  set myText to myList as string
  set AppleScript's text item delimiters to oldDel
  return myText
end replace

on run argv

  set content to ""
  repeat with arg in argv
    set content to content & " " & arg as Unicode text
  end repeat
  set content to replace {content, "\r", ""}
  set content to replace {content, "\n", "\\n"}
  set content to replace {content, "'", "\\'"}

  tell application "Google Chrome"
    tell window 1
      set newTab to make new tab with properties {URL:"about:blank"}
      delay 0.5
      repeat while loading of newTab
        delay 0.5
      end repeat
    end tell
    execute front window's active tab javascript "document.documentElement.innerHTML = '" & content & "';"
  end tell

end run