merge_pr_9594
This patch adds tests for opacity, which only takes a <number> and whose computed value is clamped to [0, 1]. This is the <number> property so we had to add to the test harness. Bug: 545318 Change-Id: I5689843188811c8c14c062a60deb0a8c580de3d9 Reviewed-on: https://chromium-review.googlesource.com/927745 Commit-Queue: Darren Shen <[email protected]> Reviewed-by: nainar <[email protected]> Cr-Commit-Position: refs/heads/master@{#538269}