Revert "chromeos: Move files in //ash/common to //ash, part 1"

ash/common/system/chromeos/enterprise/enterprise_domain_observer.h

Index: ash/common/system/chromeos/enterprise/enterprise_domain_observer.h
diff --git a/ash/system/enterprise/enterprise_domain_observer.h b/ash/common/system/chromeos/enterprise/enterprise_domain_observer.h
similarity index 59%
rename from ash/system/enterprise/enterprise_domain_observer.h
rename to ash/common/system/chromeos/enterprise/enterprise_domain_observer.h
index b76d526ff2af7140aae760b5b9052ff8a470a69e..358397644c13227cf63f1d18487b7d975af3f780 100644
--- a/ash/system/enterprise/enterprise_domain_observer.h
+++ b/ash/common/system/chromeos/enterprise/enterprise_domain_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSTEM_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_
-#define ASH_SYSTEM_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_
+#ifndef ASH_COMMON_SYSTEM_CHROMEOS_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_
+#define ASH_COMMON_SYSTEM_CHROMEOS_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_
 
 namespace ash {
 
@@ -16,4 +16,4 @@ class EnterpriseDomainObserver {
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_
+#endif  // ASH_COMMON_SYSTEM_CHROMEOS_ENTERPRISE_ENTERPRISE_DOMAIN_OBSERVER_H_