Revert of Stop passing const-reference of SWRegistration in all GetRegistrationsCallbacks.

content/browser/service_worker/service_worker_job_unittest.cc

Index: content/browser/service_worker/service_worker_job_unittest.cc
diff --git a/content/browser/service_worker/service_worker_job_unittest.cc b/content/browser/service_worker/service_worker_job_unittest.cc
index 14729cbc103eba71f56d6e75e3866988f4e69a80..d06955f01f65b1356778951a6f0e894523b29eed 100644
--- a/content/browser/service_worker/service_worker_job_unittest.cc
+++ b/content/browser/service_worker/service_worker_job_unittest.cc
@@ -58,10 +58,10 @@
     bool* called,
     scoped_refptr<ServiceWorkerRegistration>* registration,
     ServiceWorkerStatusCode status,
-    scoped_refptr<ServiceWorkerRegistration> result) {
+    const scoped_refptr<ServiceWorkerRegistration>& result) {
   EXPECT_EQ(expected_status, status);
   *called = true;
-  *registration = std::move(result);
+  *registration = result;
 }
 
 // Creates a callback which both keeps track of if it's been called,