merge_pr_8988
This patch uses idlharness.js to test the CSSPositionValue interface. Bug: 774887 Change-Id: I6298716200a662201e7d5dbb11a4fb7328d5cafb Reviewed-on: https://chromium-review.googlesource.com/860963 Reviewed-by: meade_UTC10 <[email protected]> Commit-Queue: Darren Shen <[email protected]> Cr-Commit-Position: refs/heads/master@{#528750}