Remove ScopedVector from ContentBrowserClient.

chrome/browser/sync_file_system/local/canned_syncable_file_system.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_file_system/local/canned_syncable_file_system.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <iterator>
 #include <utility>
@@ skipping 234 matching lines @@
         base::ThreadTaskRunnerHandle::Get().get(), storage_policy.get());
   }
 
   std::vector<std::string> additional_allowed_schemes;
   additional_allowed_schemes.push_back(origin_.scheme());
   storage::FileSystemOptions options(
       storage::FileSystemOptions::PROFILE_MODE_NORMAL,
       additional_allowed_schemes,
       env_override_);
 
-  ScopedVector<storage::FileSystemBackend> additional_backends;
+  std::vector<std::unique_ptr<storage::FileSystemBackend>> additional_backends;
   additional_backends.push_back(SyncFileSystemBackend::CreateForTesting());
 
   file_system_context_ = new FileSystemContext(
       io_task_runner_.get(), file_task_runner_.get(),
       storage::ExternalMountPoints::CreateRefCounted().get(),
       storage_policy.get(),
       quota_manager_.get() ? quota_manager_->proxy() : nullptr,
       std::move(additional_backends),
       std::vector<storage::URLRequestAutoMountHandler>(), data_dir_.GetPath(),
       options);
@@ skipping 487 matching lines @@
   sync_status_ = status;
   quit_closure.Run();
 }
 
 void CannedSyncableFileSystem::InitializeSyncStatusObserver() {
   ASSERT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
   backend()->sync_context()->sync_status()->AddObserver(this);
 }
 
 }  // namespace sync_file_system