Put atomic policy groups behind a finch feature flip

Bug: 990073, 989734
Change-Id: I35fd81bd4ed1426a0865a2820c818944c263de04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1731755
Commit-Queue: Yann Dago <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Reviewed-by: Robert Kaplow <[email protected]>
Reviewed-by: Julian Pastarmov <[email protected]>
Cr-Commit-Position: refs/heads/master@{#684351}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 85a0d94..1e90b149 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -84,6 +84,7 @@
 #include "components/omnibox/common/omnibox_features.h"
 #include "components/password_manager/core/common/password_manager_features.h"
 #include "components/payments/core/features.h"
+#include "components/policy/core/common/features.h"
 #include "components/previews/core/previews_features.h"
 #include "components/previews/core/previews_switches.h"
 #include "components/printing/browser/features.h"
@@ -4305,6 +4306,11 @@
      FEATURE_VALUE_TYPE(ash::features::kLockScreenMediaControls)},
 #endif  // defined(OS_CHROMEOS)
 
+    {"policy-atomic-group-enabled",
+     flag_descriptions::kPolicyAtomicGroupsEnabledName,
+     flag_descriptions::kPolicyAtomicGroupsEnabledDescription, kOsAll,
+     FEATURE_VALUE_TYPE(policy::features::kPolicyAtomicGroup)},
+
     // NOTE: Adding a new flag requires adding a corresponding entry to enum
     // "LoginCustomFlags" in tools/metrics/histograms/enums.xml. See "Flag
     // Histograms" in tools/metrics/histograms/README.md (run the