Add ManagementMode enum and GetManagementMode().

components/policy/core/common/cloud/cloud_policy_constants.cc

Index: components/policy/core/common/cloud/cloud_policy_constants.cc
diff --git a/components/policy/core/common/cloud/cloud_policy_constants.cc b/components/policy/core/common/cloud/cloud_policy_constants.cc
index 892deaa3ab61cd6587a6b340885c2544130cf773..e574dea6642c0edaf38460b8b6eeebaaa373394a 100644
--- a/components/policy/core/common/cloud/cloud_policy_constants.cc
+++ b/components/policy/core/common/cloud/cloud_policy_constants.cc
@@ -6,7 +6,11 @@
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
+#include "base/logging.h"
 #include "components/policy/core/common/policy_switches.h"
+#include "policy/proto/device_management_backend.pb.h"
+
+namespace em = enterprise_management;
 
 namespace policy {
 
@@ -102,4 +106,26 @@ const char* GetChromeUserPolicyType() {
   return dm_protocol::kChromeUserPolicyType;
 }
 
+ManagementMode GetManagementMode(const em::PolicyData& policy_data) {
+  if (policy_data.has_management_mode()) {
+    switch (policy_data.management_mode()) {
+      case em::PolicyData::LOCAL_OWNER:
+        return MANAGEMENT_MODE_LOCAL;
+
+      case em::PolicyData::ENTERPRISE_MANAGED:
+        return MANAGEMENT_MODE_ENTERPRISE;
+
+      case em::PolicyData::CONSUMER_MANAGED:
+        return MANAGEMENT_MODE_CONSUMER;
+
+      default:
+        NOTREACHED();
+        return MANAGEMENT_MODE_LOCAL;
+    }
+  }
+
+  return policy_data.has_request_token() ?
+      MANAGEMENT_MODE_ENTERPRISE : MANAGEMENT_MODE_LOCAL;
+}
+
 }  // namespace policy