commit 03912101eb72d9089320e65955b8da01ed234120
author Nasko Oskov <nasko@chromium.org> Fri Jan 11 00:21:32 2019
committer Commit Bot <commit-bot@chromium.org> Fri Jan 11 00:21:32 2019
tree bbd15acbe9cf557f6dd3e5e31e4ca93c2f41ce34
parent a992e436e7c9a0e5b5d95935faf134826c84e93f

Add support for precursor origin to session history navigations

url::Origin is at this time capable of storing information for opaque origins
that indicates where they have come from - precursor origin. This is very
useful information for making security decisions, such as which process to
place a navigation or verifying that an opaque origin sent by renderer process
is expected/allowed.

This CL adds support for the browser process to tell the renderer process
which origin to commit a specific navigation in. It is currently only used for
session history navigations, as the origin in which they have committed is
stored in FrameNavigationEntry. This allows navigations to session history
entries with URLs that don't have embedded origin (e.g. about:blank, data:) to
still commit in the origin which they initially were created in.

Bug: 882053
Change-Id: I71f8bace6b017973fc79465b1809ca0ff9794465
Reviewed-on: https://chromium-review.googlesource.com/c/1375390
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Commit-Queue: Nasko Oskov <nasko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#621820}