use USVString for URLs at Worklet.

use USVString for URLs instead of DOMString at Worklet.

Bug: 567358
Change-Id: Ia1d777693ce9a71f4369122e389018dc0e5b4921
Reviewed-on: https://chromium-review.googlesource.com/686679
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Commit-Queue: Hwanseung Lee <hs1217.lee@samsung.com>
Cr-Commit-Position: refs/heads/master@{#504789}
1 file changed