Add source column to chrome://policy showing the origins of policies.

components/policy/core/common/policy_types.h

Index: components/policy/core/common/policy_types.h
diff --git a/components/policy/core/common/policy_types.h b/components/policy/core/common/policy_types.h
index 07289ca3ba04690360a82ab1752e3fa2ae86bb75..a497381f4f25ee13e2fe3ef95d16bf098348d0b9 100644
--- a/components/policy/core/common/policy_types.h
+++ b/components/policy/core/common/policy_types.h
@@ -28,6 +28,21 @@ enum PolicyLevel {
   POLICY_LEVEL_MANDATORY,
 };
 
+// The source of a policy indicates where its value is originating from.
+enum PolicySource {
+  // The Default value of a policy source.
+  POLICY_SOURCE_DEFAULT,

[Thiemo Nagel, 2015/09/01 17:40:37]

POLICY_SOURCE_UNKNOWN would seem like a more descriptive name to me.

[fhorschig, 2015/09/04 06:53:54]

Done.

+
+  // If the policies default was determined by enterprise default settings.
+  POLICY_SOURCE_ENTERPRISE_DEFAULT,
+
+  // If the policy is set by a source specifically for this platform.
+  POLICY_SOURCE_PLATFORM,
+
+  // If the policy originates from a cloud source.
+  POLICY_SOURCE_CLOUD
+};
+
 }  // namespace policy
 
 #endif  // COMPONENTS_POLICY_CORE_COMMON_POLICY_TYPES_H_