Reland - Replace FakeServer's implementation with LoopbackServer invocations.

chrome/browser/sync/test/integration/single_client_user_events_sync_test.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "chrome/browser/sync/test/integration/single_client_status_change_checker.h"
 #include "chrome/browser/sync/test/integration/status_change_checker.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 #include "chrome/browser/sync/user_event_service_factory.h"
@@ skipping 12 matching lines @@
 UserEventSpecifics CreateEvent(int minutes_ago) {
   UserEventSpecifics specifics;
   specifics.set_event_time_usec(
       (Time::Now() - TimeDelta::FromMinutes(minutes_ago)).ToInternalValue());
   specifics.mutable_test_event();
   return specifics;
 }
 
 CommitResponse::ResponseType BounceType(
     CommitResponse::ResponseType type,
-    const fake_server::FakeServerEntity& entity) {
+    const syncer::LoopbackServerEntity& entity) {
   return type;
 }
 
 CommitResponse::ResponseType TransientErrorFirst(
     bool* first,
     UserEventSpecifics* retry_specifics,
-    const fake_server::FakeServerEntity& entity) {
+    const syncer::LoopbackServerEntity& entity) {
   if (*first) {
     *first = false;
     SyncEntity sync_entity;
     entity.SerializeAsProto(&sync_entity);
     *retry_specifics = sync_entity.specifics().user_event();
     return CommitResponse::TRANSIENT_ERROR;
   } else {
     return CommitResponse::SUCCESS;
   }
 }
@@ skipping 128 matching lines @@
   event_service->RecordUserEvent(specifics1);
   UserEventEqualityChecker(GetSyncService(0), GetFakeServer(),
                            {specifics1, specifics2})
       .Wait();
   UserEventEqualityChecker(GetSyncService(0), GetFakeServer(),
                            {specifics1, specifics2, retry_specifics})
       .Wait();
 }
 
 }  // namespace