[Trusted Types] Handle Trusted Types in xlink:href for SVG elements.

Bug: 933300
Change-Id: I58e72faa9f5cdbd0390c84842cc5d5641d0b7d21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1634880
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Commit-Queue: Daniel Vogelheim <vogelheim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#670100}
19 files changed