HTMLBaseElement::href changed to accept TrustedTypes

Changed implementation of setHref(), older version is abandoned.
Added href() getter that accepts URLString as an argument.

Bug: 739170
Change-Id: I7703c1a33f037a912f1a105d8c79ef8fe5b4a289
Reviewed-on: https://chromium-review.googlesource.com/1136544
Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: Maja Kabus <kabusm@google.com>
Cr-Commit-Position: refs/heads/master@{#575232}
5 files changed