On components/script/*.rs:

    # Remove imports.
    /^ *use dom::element::\{.*AttributeHandlers/ {
        s/\{AttributeHandlers, /\{/
        s/, AttributeHandlers//g
        s/\{([a-zA-Z]+)\}/\1/
        /\{\}/d
        s/::self;$/;/
    }
    /^ *use dom::element::\{?AttributeHandlers\}?;$/d

    # Remove AttributeHandlers.
    /^pub trait AttributeHandlers \{$/,/^\}$/D

    # Patch AttributeHandlers methods.
    /^impl<'a> AttributeHandlers for &'a Element \{/,/^\}$/ {
        s/^impl<'a> AttributeHandlers for &'a Element \{/impl Element {/
        /^ *fn /s/\(self([,)])/\(\&self\1/
	/^ *fn.*\(&self/s/fn/pub fn/
    }

The few error cases were then fixed by hand.