The empty brand code is organic on all platforms.

Omaha treats it as GGLS, and all call sites of IsOrganic except one
explicitly check against empty; moving that into IsOrganic simplifies
the code.

Bug: 943683
Change-Id: I3cbd89beb8255832e1a5fd8145ea583e28dcebf3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1531230
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Reviewed-by: Roger Tawa <rogerta@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Auto-Submit: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Joshua Pawlicki <waffles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#643864}
4 files changed