Enable Site Info on internal pages.

Remove code that prevents Site Info from being displayed on internal
pages (chrome://flags etc). Add current URL to the page info model's
section title for internal URLs.

menu. Show Site Info should be enabled. The Site Info popup should show
current URL and say "You're viewing a secure Chromium page".

Bug: 657838
Test: Navigate to chrome://flags or chrome://version. Click on tools
Change-Id: I161679c5c0cc2ea715c87a02898ca8598d6861e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1478797
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Reviewed-by: Mark Cogan <marq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639004}
4 files changed