[ChromeDriver] Update js tests to use v1 shadow DOM

Bug: chromedriver:2729
Change-Id: I7727fa078f5b099ebd38f26fd95bd8fe6ddd283a
Reviewed-on: https://chromium-review.googlesource.com/c/1412935
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Tatiana Buldina <buldina@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623025}
1 file changed