Change the copyright from Chromium OS to Chromium.

ui/file_manager/zip_archiver/cpp/volume_reader_javascript_stream.cc

-// Copyright 2014 The Chromium OS Authors. All rights reserved.
+// 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 "volume_reader_javascript_stream.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "third_party/zlib/contrib/minizip/unzip.h"
 
@@ skipping 236 matching lines @@
   // Read next chunk only if not at the end of archive.
   if (archive_size_ <= offset_)
     return;
 
   int64_t bytes_to_read =
       std::min(length, archive_size_ - offset_ /* Positive check above. */);
   available_data_ = false;
 
   requestor_->RequestFileChunk(request_id_, offset_, bytes_to_read);
 }