Convert //chrome/browser/sync_file_system from scoped_ptr to std::unique_ptr

chrome/browser/sync_file_system/local/local_file_sync_service_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 <stdint.h>
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 182 matching lines @@
     return sync_status;
   }
 
   int64_t GetNumChangesInTracker() const {
     return file_system_->backend()->change_tracker()->num_changes();
   }
 
   content::TestBrowserThreadBundle thread_bundle_;
 
   base::ScopedTempDir temp_dir_;
-  scoped_ptr<leveldb::Env> in_memory_env_;
+  std::unique_ptr<leveldb::Env> in_memory_env_;
   TestingProfile profile_;
 
-  scoped_ptr<CannedSyncableFileSystem> file_system_;
-  scoped_ptr<LocalFileSyncService> local_service_;
+  std::unique_ptr<CannedSyncableFileSystem> file_system_;
+  std::unique_ptr<LocalFileSyncService> local_service_;
 
   int64_t num_changes_;
 };
 
 // More complete tests for PrepareForProcessRemoteChange and ApplyRemoteChange
 // are also in content_unittest:LocalFileSyncContextTest.
 TEST_F(LocalFileSyncServiceTest, RemoteSyncStepsSimple) {
   const FileSystemURL kFile(file_system_->URL("file"));
   const FileSystemURL kDir(file_system_->URL("dir"));
   const char kTestFileData[] = "0123456789";
@@ skipping 509 matching lines @@
   all_origins.insert(kOrigin2);
   all_origins.insert(kOrigin3);
   while (!all_origins.empty()) {
     ASSERT_TRUE(NextOriginToProcess(&origin));
     ASSERT_TRUE(ContainsKey(all_origins, origin));
     all_origins.erase(origin);
   }
 }
 
 }  // namespace sync_file_system