commit f8a7e529d9e501a6f43a4cfdd09916a6e8ee4102
author Arthur Sonzogni <arthursonzogni@chromium.org> Fri Jan 11 14:30:14 2019
committer Commit Bot <commit-bot@chromium.org> Fri Jan 11 14:30:14 2019
tree c9354a6aa747a1a9a8ea8da41b038ef091502ff3
parent af147bac17333be77c9dbb5869ec244d942729ce

Modify headers from the NavigationHandle.

In content/public, there is two ways to act on a new navigation:

1) The "new" ones that are NavigationHandle based. Users of the API needs
   to implement either a WebContentsObserver or a NavigationThrottle.
   Then, they can act on the NavigationHandle.

2) The "legacy" ones where you implement the ContentBrowserClient:
   ContentBrowserClient::NavigationRequestStarted()
   ContentBrowserClient::NavigationRequestRedirected()
   The latter are used to modify request headers and load flags.

The goal is to remove 2) and keep only 1)

This CL is making able to modify headers from the NavigationHandle. Following
CL will deprecate and then remove 2).

Bug: 919432
Change-Id: I4db812d4cf1df2f67cf8bf97dca410009a1a3046
Reviewed-on: https://chromium-review.googlesource.com/c/1392949
Reviewed-by: Camille Lamy <clamy@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#621997}