Revert "[autotest] Temporarily disable autoupdate_ForcedOOBEUpdate."

This reverts commit 02a863a3454edb57060de03357e5b32f022a1e63.

Reason for revert: I have a CL to fix the test and I will submit this revert with that change

Original change's description:
> [autotest] Temporarily disable autoupdate_ForcedOOBEUpdate.
>
> The test is sometimes causing devices to download and apply consumer
> images from Omaha, which leaves the devices untestable, and requires
> a relatively expensive manual intervention to fix.
>
> This disables the test to stop the bleeding until the problem can be
> put under better control.
>
> BUG=chromium:877107
> TEST=None
>
> Change-Id: I4d25f74abb761bec3d85d10792bc45ba3b8d6c5d
> Reviewed-on: https://chromium-review.googlesource.com/1187576
> Tested-by: Richard Barnette <jrbarnette@chromium.org>
> Reviewed-by: Congbin Guo <guocb@chromium.org>

Bug: chromium:877107
Change-Id: If46e80ce26a3dff6b3faae09a9c91a6592c222d6
Reviewed-on: https://chromium-review.googlesource.com/1219549
Commit-Ready: danny chan <dchan@chromium.org>
Tested-by: David Haddock <dhaddock@chromium.org>
Reviewed-by: David Haddock <dhaddock@chromium.org>
diff --git a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.delta b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.delta
index d73edc9..2a8e96e 100644
--- a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.delta
+++ b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.delta
@@ -9,10 +9,7 @@
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "platform"
 TEST_TYPE = "server"
-# TODO(crbug.com/877107) This test is sometimes causing DUTs to download
-# and install production images from Omaha, which breaks the DUT.
-# Disable the test until we find a better way to stop that event.
-# ATTRIBUTES = "suite:cellular_au_nightly"
+ATTRIBUTES = "suite:cellular_au_nightly"
 DOC = """
 This tests the forced autoupdate flow at OOBE using cellular.
 
diff --git a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.full b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.full
index aac7224..874d4c2 100644
--- a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.full
+++ b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.cellular.full
@@ -9,10 +9,7 @@
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "platform"
 TEST_TYPE = "server"
-# TODO(crbug.com/877107) This test is sometimes causing DUTs to download
-# and install production images from Omaha, which breaks the DUT.
-# Disable the test until we find a better way to stop that event.
-# ATTRIBUTES = "suite:cellular_au"
+ATTRIBUTES = "suite:cellular_au"
 DOC = """
 This tests the forced autoupdate flow at OOBE using cellular.
 
diff --git a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.delta b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.delta
index 1b821dc..f533a5c 100644
--- a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.delta
+++ b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.delta
@@ -9,10 +9,7 @@
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "platform"
 TEST_TYPE = "server"
-# TODO(crbug.com/877107) This test is sometimes causing DUTs to download
-# and install production images from Omaha, which breaks the DUT.
-# Disable the test until we find a better way to stop that event.
-# ATTRIBUTES = "suite:bvt-perbuild"
+ATTRIBUTES = "suite:bvt-perbuild"
 DOC = """
 This tests the forced autoupdate flow at OOBE.
 
diff --git a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.full b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.full
index 29fd3b8..fb0660a 100644
--- a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.full
+++ b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.full
@@ -9,10 +9,7 @@
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "platform"
 TEST_TYPE = "server"
-# TODO(crbug.com/877107) This test is sometimes causing DUTs to download
-# and install production images from Omaha, which breaks the DUT.
-# Disable the test until we find a better way to stop that event.
-# ATTRIBUTES = "suite:bvt-perbuild"
+ATTRIBUTES = "suite:bvt-perbuild"
 DOC = """
 This tests the forced autoupdate flow at OOBE.
 
diff --git a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.interrupt.full b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.interrupt.full
index fef3cff..244050f 100644
--- a/server/site_tests/autoupdate_ForcedOOBEUpdate/control.interrupt.full
+++ b/server/site_tests/autoupdate_ForcedOOBEUpdate/control.interrupt.full
@@ -9,10 +9,7 @@
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "platform"
 TEST_TYPE = "server"
-# TODO(crbug.com/877107) This test is sometimes causing DUTs to download
-# and install production images from Omaha, which breaks the DUT.
-# Disable the test until we find a better way to stop that event.
-# ATTRIBUTES = "suite:bvt-perbuild"
+ATTRIBUTES = "suite:bvt-perbuild"
 DOC = """
 This tests the forced autoupdate flow at OOBE with interruptions.