Use the Windows MDM API to check if the machine is being managed.

components/update_client/updater_state.cc

Index: components/update_client/updater_state.cc
diff --git a/components/update_client/updater_state.cc b/components/update_client/updater_state.cc
index 0e588bfe7b17c09a3c511454456ed29d7da252dc..503780ad9b42e012c664c0b6060f05674012deb1 100644
--- a/components/update_client/updater_state.cc
+++ b/components/update_client/updater_state.cc
@@ -14,7 +14,7 @@
 
 namespace update_client {
 
-const char UpdaterState::kDomainJoined[] = "domainjoined";
+const char UpdaterState::kIsEnterpriseUser[] = "domainjoined";

[Roger Tawa OOO till Jul 10th, 2016/12/16 21:00:53]

I changed the name of the constant but not the value because I believe this is
persisted.  Let me know if you think the value should be changed too.

[Georges Khalil, 2017/02/09 14:59:57]

I think you are right, that it is persisted. But I would double check this with
an owner (sorin@?).

 
 UpdaterState::UpdaterState(bool is_machine) : is_machine_(is_machine) {}
 
@@ -33,7 +33,7 @@ std::unique_ptr<UpdaterState::Attributes> UpdaterState::GetState(
 
 #if defined(OS_WIN)
 void UpdaterState::ReadState() {
-  is_joined_to_domain_ = IsJoinedToDomain();
+  is_enterprise_user_ = IsEnterpriseUser();
 
 #if defined(GOOGLE_CHROME_BUILD)
   updater_name_ = GetUpdaterName();
@@ -49,7 +49,7 @@ void UpdaterState::ReadState() {
 UpdaterState::Attributes UpdaterState::BuildAttributes() const {
   Attributes attributes;
 
-  attributes[kDomainJoined] = is_joined_to_domain_ ? "1" : "0";
+  attributes[kIsEnterpriseUser] = is_enterprise_user_ ? "1" : "0";
 
   attributes["name"] = updater_name_;