GitLab

In order to support permissions for Background Fetch, the
RenderFrameHost should be made available. The binding is done from
RenderFrameHostImpl now, with RendererInterfaceBinders left as
a fallback (to register from service worker contexts for example).

Bug: 692647
Change-Id: I3e12b60f410ba104601c68392a07fe24da1cc220
Reviewed-on: https://chromium-review.googlesource.com/1172785Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Mugdha Lakhani <nator@chromium.org>
Commit-Queue: Rayan Kanso <rayankans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582954}