[fsp] Remove the create flag from the file opening operation.

chrome/browser/chromeos/file_system_provider/fileapi/file_stream_reader.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/file_system_provider/fileapi/file_stream_reader.h"
 
 #include "base/debug/trace_event.h"
 #include "base/files/file.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/provider_async_file_util.h"
@@ skipping 31 matching lines @@
     callback.Run(base::WeakPtr<ProvidedFileSystemInterface>(),
                  base::FilePath(),
                  0 /* file_handle */,
                  base::File::FILE_ERROR_SECURITY);
     return;
   }
 
   parser.file_system()->OpenFile(
       parser.file_path(),
       ProvidedFileSystemInterface::OPEN_FILE_MODE_READ,
-      false /* create */,
       base::Bind(
           callback, parser.file_system()->GetWeakPtr(), parser.file_path()));
 }
 
 // Forwards results of calling OpenFileOnUIThread back to the IO thread.
 void OnOpenFileCompletedOnUIThread(
     const FileStreamReader::OpenFileCompletedCallback& callback,
     base::WeakPtr<ProvidedFileSystemInterface> file_system,
     const base::FilePath& file_path,
     int file_handle,
@@ skipping 360 matching lines @@
     callback.Run(net::ERR_UPLOAD_FILE_CHANGED);
     return;
   }
 
   DCHECK_EQ(base::File::FILE_OK, result);
   callback.Run(metadata.size);
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos