Share JSON schema constants.

chrome/browser/policy/policy_loader_win.h

Index: chrome/browser/policy/policy_loader_win.h
diff --git a/chrome/browser/policy/policy_loader_win.h b/chrome/browser/policy/policy_loader_win.h
index 75783b417e6b7888355a669c6e610ece171d7c89..4156ffea2950c7a9fd948af3e03bce54c9673400 100644
--- a/chrome/browser/policy/policy_loader_win.h
+++ b/chrome/browser/policy/policy_loader_win.h
@@ -64,15 +64,6 @@ namespace registry_constants {
   // Registry key within an extension's namespace that contains the policy
   // schema.
   extern const wchar_t kSchema[];
-  // Key in a JSON schema that indicates the expected type.
-  extern const char kType[];
-  // Key in a JSON schema that indicates the expected properties of an object.
-  extern const char kProperties[];
-  // Key in a JSON schema that indicates the default schema for object
-  // properties.
-  extern const char kAdditionalProperties[];
-  // Key in a JSON schema that indicates the expected type of list items.
-  extern const char kItems[];
 }  // namespace registry_constants
 
 }  // namespace policy