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

chrome/browser/extensions/api/image_writer_private/operation.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/extensions/api/image_writer_private/operation.h"
 
 #include <utility>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
@@ skipping 312 matching lines @@
     int64_t bytes_processed,
     int64_t bytes_total,
     int progress_offset,
     int progress_scale,
     const base::Callback<void(const std::string&)>& callback) {
   if (IsCancelled())
     return;
 
   CHECK_LE(bytes_processed, bytes_total);
 
-  scoped_ptr<char[]> buffer(new char[kMD5BufferSize]);
+  std::unique_ptr<char[]> buffer(new char[kMD5BufferSize]);
   int read_size = std::min(bytes_total - bytes_processed,
                            static_cast<int64_t>(kMD5BufferSize));
 
   if (read_size == 0) {
     // Nothing to read, we are done.
     base::MD5Digest digest;
     base::MD5Final(&digest, &md5_context_);
     callback.Run(base::MD5DigestToBase16(digest));
   } else {
     int len = file.Read(bytes_processed, buffer.get(), read_size);
@@ skipping 37 matching lines @@
   for (std::vector<base::Closure>::iterator it = cleanup_functions_.begin();
        it != cleanup_functions_.end();
        ++it) {
     it->Run();
   }
   cleanup_functions_.clear();
 }
 
 }  // namespace image_writer
 }  // namespace extensions