policy: use JSON schema to deserialize entries from Windows registry.

chrome/browser/policy/registry_dict_win.h

Index: chrome/browser/policy/registry_dict_win.h
diff --git a/chrome/browser/policy/registry_dict_win.h b/chrome/browser/policy/registry_dict_win.h
index 43abf26007a5b6205f681b535f4a4eeac20172a2..28da8db38deb29c5b761023bb668d6fc2b64919d 100644
--- a/chrome/browser/policy/registry_dict_win.h
+++ b/chrome/browser/policy/registry_dict_win.h
@@ -13,6 +13,7 @@
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "components/policy/core/common/policy_schema.h"
 
 namespace base {
 class DictionaryValue;
@@ -72,8 +73,7 @@ class RegistryDict {
   // collisions, the key wins. |schema| supplies an optional JSON schema that
   // will be used to map types to base::Value types. The returned object is
   // either a base::DictionaryValue or a base::ListValue.
-  scoped_ptr<base::Value> ConvertToJSON(
-      const base::DictionaryValue* schema) const;
+  scoped_ptr<base::Value> ConvertToJSON(const PolicySchema* schema) const;
 
   const KeyMap& keys() const { return keys_; }
   const ValueMap& values() const { return values_; }