Convert //chrome from scoped_ptr to std::unique_ptr

chrome/utility/image_writer/image_writer_win.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 <windows.h>
 #include <setupapi.h>
 #include <stddef.h>
 #include <winioctl.h>
 
 #include "chrome/utility/image_writer/error_messages.h"
@@ skipping 15 matching lines @@
   if (!device_handle.IsValid()) {
     Error(error::kOpenDevice);
     return false;
   }
 
   STORAGE_PROPERTY_QUERY query = STORAGE_PROPERTY_QUERY();
   query.PropertyId = StorageDeviceProperty;
   query.QueryType = PropertyStandardQuery;
   DWORD bytes_returned;
 
-  scoped_ptr<char[]> output_buf(new char[kStorageQueryBufferSize]);
+  std::unique_ptr<char[]> output_buf(new char[kStorageQueryBufferSize]);
   BOOL status = DeviceIoControl(
       device_handle.Get(),             // Device handle.
       IOCTL_STORAGE_QUERY_PROPERTY,    // Flag to request device properties.
       &query,                          // Query parameters.
       sizeof(STORAGE_PROPERTY_QUERY),  // query parameters size.
       output_buf.get(),                // output buffer.
       kStorageQueryBufferSize,         // Size of buffer.
       &bytes_returned,                 // Number of bytes returned.
                                        // Must not be null.
       NULL);                           // Optional unused overlapped perameter.
@@ skipping 144 matching lines @@
 
   if (volume_finder != INVALID_HANDLE_VALUE) {
     FindVolumeClose(volume_finder);
   }
 
   if (success)
     continuation.Run();
 }
 
 }  // namespace image_writer