In component updater, change const scoped_refcounted<T>& to scoped_refcounted<T>

Bug: 811536
Change-Id: If59a6cdb323df42d5e67753de7e012c1438a39c1
Reviewed-on: https://chromium-review.googlesource.com/914968
Reviewed-by: Joshua Pawlicki <[email protected]>
Commit-Queue: Sorin Jianu <[email protected]>
Cr-Commit-Position: refs/heads/master@{#536394}
diff --git a/components/update_client/request_sender.h b/components/update_client/request_sender.h
index bbba898..75f1ef9 100644
--- a/components/update_client/request_sender.h
+++ b/components/update_client/request_sender.h
@@ -51,7 +51,7 @@
   // avoiding collisions with known network errors is desirable.
   enum : int { kErrorResponseNotTrusted = -10000 };
 
-  explicit RequestSender(const scoped_refptr<Configurator>& config);
+  explicit RequestSender(scoped_refptr<Configurator> config);
   ~RequestSender() override;
 
   // |use_signing| enables CUP signing of protocol messages exchanged using