[Android] Add gn support for multidex.

BUG=272790

Review URL: https://codereview.chromium.org/1451483002

Cr-Commit-Position: refs/heads/master@{#360943}


CrOS-Libchrome-Original-Commit: e6361975d7f7f4c434dc3380a3824b9d5e323d20
2 files changed
tree: 3851a5d1e8bfa5dea34b555289a5580498df44c5
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/