Use TestSyncService in about_sync_util_unittest.cc

Bug: 859874
Change-Id: I7416dee32bd2daf93976f2e63f397a76e9a30b72
Reviewed-on: https://chromium-review.googlesource.com/c/1326006Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Commit-Queue: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606436}

components/sync/driver/about_sync_util_unittest.cc

@@ -2,36 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/sync/driver/about_sync_util.h"
+#include <memory>
 
-#include "components/sync/driver/fake_sync_service.h"
-#include "components/sync/engine/sync_status.h"
-#include "testing/gmock/include/gmock/gmock.h"
+#include "base/values.h"
+#include "components/sync/driver/about_sync_util.h"
+#include "components/sync/driver/test_sync_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 namespace sync_ui_util {
 namespace {
 
-class SyncServiceMock : public FakeSyncService {
- public:
-  bool IsFirstSetupComplete() const override { return true; }
-
-  int GetDisableReasons() const override {
-    return DISABLE_REASON_UNRECOVERABLE_ERROR;
-  }
-
-  bool QueryDetailedSyncStatus(SyncStatus* result) const override {
-    return false;
-  }
-
-  SyncCycleSnapshot GetLastCycleSnapshot() const override {
-    return SyncCycleSnapshot();
-  }
-};
-
 TEST(SyncUIUtilTestAbout, ConstructAboutInformationWithUnrecoverableErrorTest) {
-  SyncServiceMock service;
+  TestSyncService service;
+  service.SetDisableReasons(
+      syncer::SyncService::DISABLE_REASON_UNRECOVERABLE_ERROR);
 
   std::unique_ptr<base::DictionaryValue> strings(
       ConstructAboutInformation(&service, version_info::Channel::UNKNOWN));