GitLab

Only activate the text fragment anchor if the navigation was initiated
by the user or browser. This adds a is_browser_initiated bit to
CommitNavigationParams to plumb the browser_initiated_ state from the
browser to the renderer.

Also added TextFragmentAnchorBrowserTests, testing that both user and
browser initiated navigations can activate the feature.

Bug: 924966
Change-Id: Id262eb6967e0109a06739a27b012466031bbd74b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1638288Reviewed-by: Camille Lamy <clamy@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: David Bokan <bokan@chromium.org>
Commit-Queue: Nick Burris <nburris@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680536}