[Extensions UI] Use developerPrivate API for profile configuration

extensions/browser/extension_function.h

Index: extensions/browser/extension_function.h
diff --git a/extensions/browser/extension_function.h b/extensions/browser/extension_function.h
index f9a2a79de2d79ec68a07ef2d09412aa6829d1c1c..a6d814d571237bea8d1193087dbf8d89bac41bf9 100644
--- a/extensions/browser/extension_function.h
+++ b/extensions/browser/extension_function.h
@@ -287,6 +287,8 @@ class ExtensionFunction
   // raw pointer for convenience, since callers usually construct the argument
   // to this by hand.
   ResponseValue OneArgument(base::Value* arg);
+  // Success, a single argument |arg| to pass to caller.
+  ResponseValue OneArgument(scoped_ptr<base::Value> arg);
   // Success, two arguments |arg1| and |arg2| to pass to caller. TAKES
   // OWNERSHIP - raw pointers for convenience, since callers usually construct
   // the argument to this by hand. Note that use of this function may imply you