GitLab

This CL exposes UnifiedConsent feature to Java and adds a skeleton of
SigninActivity, which is created if this feature is enabled. This
activity currently contains an empty container for SigninFragment that
will be added by subsequent CLs.

Bug: 814728
Change-Id: Ic12cfeb7b1fa3732ac625095412473fd12d1781b
Reviewed-on: https://chromium-review.googlesource.com/952971Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Boris Sazonov <bsazonov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542452}