Standardize usage of virtual/override/final in chrome/browser/sync/

chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc

 // Copyright 2013 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 "chrome/browser/sync/glue/sync_backend_host_impl.h"
 
 #include <cstddef>
 
 #include "base/files/file_util.h"
 #include "base/location.h"
@@ skipping 97 matching lines @@
   MOCK_METHOD0(OnSyncConfigureRetry, void());
 };
 
 class FakeSyncManagerFactory : public syncer::SyncManagerFactory {
  public:
   explicit FakeSyncManagerFactory(FakeSyncManager** fake_manager)
      : SyncManagerFactory(NORMAL),
        fake_manager_(fake_manager) {
     *fake_manager_ = NULL;
   }
-  virtual ~FakeSyncManagerFactory() {}
+  ~FakeSyncManagerFactory() override {}
 
   // SyncManagerFactory implementation.  Called on the sync thread.
-  virtual scoped_ptr<SyncManager> CreateSyncManager(
-      std::string name) override {
+  scoped_ptr<SyncManager> CreateSyncManager(std::string name) override {
     *fake_manager_ = new FakeSyncManager(initial_sync_ended_types_,
                                          progress_marker_types_,
                                          configure_fail_types_);
     return scoped_ptr<SyncManager>(*fake_manager_);
   }
 
   void set_initial_sync_ended_types(syncer::ModelTypeSet types) {
     initial_sync_ended_types_ = types;
   }
 
@@ skipping 634 matching lines @@
                      Difference(syncer::ModelTypeSet::All(),
                                 enabled_types_),
                      syncer::ModelTypeSet());
   EXPECT_FALSE(fake_manager_->GetTypesWithEmptyProgressMarkerToken(
       error_types).Empty());
 }
 
 }  // namespace
 
 }  // namespace browser_sync