The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/9fe5744a5bba9cdc11e81157587eee2a72f339a5

commit 9fe5744a5bba9cdc11e81157587eee2a72f339a5
Author: Andrew de los Reyes <adlr@chromium.org>
Date: Thu Apr 27 16:13:40 2017

Eve: scripts/disk_layout.json: Expand rootfs to 4GiB

In addition to setting the rootfs size, it reduces the space needed on
USB sticks so that 4GB sticks will work again.

BUG= chromium:714840 
TEST=Built Eve image and saw the USB stick was under 4GB. Booted and
installed on Eve and saw two 4GiB partitions.

Change-Id: Ib7d7daf63a709e989bb2758ab78a49993c204380
Reviewed-on: https://chromium-review.googlesource.com/486146
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Tested-by: Andrew de los Reyes <adlr@chromium.org>

[modify] https://crrev.com/9fe5744a5bba9cdc11e81157587eee2a72f339a5/overlay-eve/scripts/disk_layout.json

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/0a5c69e79c8f57d3dfdc552b9ced201d8d134def

commit 0a5c69e79c8f57d3dfdc552b9ced201d8d134def
Author: Luis Hector Chavez <lhchavez@google.com>
Date: Sat May 27 17:35:42 2017

Eve: scripts/disk_layout.json: Expand rootfs fs_size to 2GiB

This change expands the rootfs fs_size so we can have larger artifacts.

BUG= chromium:714840 
TEST=Built Eve image and saw the USB stick was *still* under 4GB. Booted
     and installed on Eve.

Change-Id: I2b62d0abae8ae149d621af66bfea58aa09dfda68
Reviewed-on: https://chromium-review.googlesource.com/516465
Commit-Ready: Luis Hector Chavez <lhchavez@chromium.org>
Tested-by: Luis Hector Chavez <lhchavez@chromium.org>
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>

[modify] https://crrev.com/0a5c69e79c8f57d3dfdc552b9ced201d8d134def/overlay-eve/scripts/disk_layout.json

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chromeos/cros-signing/+/a3c5bacd5fdfabe8d85572e894f81c5ac2da24e2

commit a3c5bacd5fdfabe8d85572e894f81c5ac2da24e2
Author: Mike Frysinger <vapier@chromium.org>
Date: Wed May 31 21:45:16 2017

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chromeos/cros-signing/+/1f95173e411d558d9c32a19a702b11bbb92354b2

commit 1f95173e411d558d9c32a19a702b11bbb92354b2
Author: Mike Frysinger <vapier@chromium.org>
Date: Wed May 31 22:02:04 2017

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chromeos/cros-signing/+/1f95173e411d558d9c32a19a702b11bbb92354b2

commit 1f95173e411d558d9c32a19a702b11bbb92354b2
Author: Mike Frysinger <vapier@chromium.org>
Date: Wed May 31 22:02:04 2017

afaik this has all long been done by you guys