Move SigninErrorController out of signin_internals target

After https://chromium-review.googlesource.com/c/chromium/src/+/1390012,
SigninErrorController is now layered on top of signin internals code
rather than being part of it. This CL accordingly move it out of the
signin_internals GN target back into the browser target that is layered
on top of it.

I verified that making this change did not remove any dependencies from
the signin_internals target (that would have been a nice side-benefit).

Bug: 917836
Change-Id: I5dc4947722c6183c91d3cee3225404919bd4b21a
Reviewed-on: https://chromium-review.googlesource.com/c/1391671
Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#619901}
1 file changed