GitLab

Add IPv6 support to match patterns (URLPatterns). This is most necessary
for implementing activeTab support on IPv6 addresses, and will also be
needed for runtime host permissions.

Bug: 853064
Change-Id: I0ac1980af679476c17112137575d37ad77490dcc
Reviewed-on: https://chromium-review.googlesource.com/1102118Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568278}