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

chrome/browser/chromeos/drive/fileapi/fileapi_worker_unittest.cc

 // Copyright 2014 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/chromeos/drive/fileapi/fileapi_worker.h"
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/drive/dummy_file_system.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "google_apis/drive/test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace drive {
 namespace fileapi_internal {
 namespace {
 
@@ skipping 235 matching lines @@
   OpenFile(kDummyPath,
            base::File::FLAG_OPEN | base::File::FLAG_READ,
            base::Bind(&VerifyRead, kInitialData),
            &file_system);
   content::RunAllBlockingPoolTasksUntilIdle();
   EXPECT_TRUE(file_system.closed());
 }
 
 }  // namespace fileapi_internal
 }  // namespace drive