Bug 110903: getPropertyValue for -webkit-margin-collapse returns null, should compute the shorthand value

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS webkitMarginCollapseValue("margin-collapse1") is 'collapse separate'
PASS webkitMarginCollapseValue("margin-collapse2") is 'discard discard'
PASS webkitMarginCollapseValue("margin-collapse3") is 'discard separate'
NOTE: 'foo' is an illegal CSS value for '-webkit-margin-collapse'.
PASS webkitMarginCollapseValue("margin-collapse4") is ""
NOTE: If only few longhand properties are specified, getPropertyValue for shorthand property returns the empty string.
PASS webkitMarginCollapseValue("margin-collapse5") is ""
PASS successfullyParsed is true

TEST COMPLETE