Remove PlatformFile from fileapi::AsyncFileUtil

chrome/browser/media_galleries/fileapi/device_media_async_file_util.cc

 // Copyright (c) 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/media_galleries/fileapi/device_media_async_file_util.h"
 
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task_runner_util.h"
@@ skipping 71 matching lines @@
 void DeviceMediaAsyncFileUtil::CreateOrOpen(
     scoped_ptr<FileSystemOperationContext> context,
     const FileSystemURL& url,
     int file_flags,
     const CreateOrOpenCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   // Returns an error if any unsupported flag is found.
   if (file_flags & ~(base::File::FLAG_OPEN |
                      base::File::FLAG_READ |
                      base::File::FLAG_WRITE_ATTRIBUTES)) {
-    base::PlatformFile invalid_file(base::kInvalidPlatformFileValue);
-    callback.Run(base::File::FILE_ERROR_SECURITY,
-                 base::PassPlatformFile(&invalid_file),
-                 base::Closure());
+    callback.Run(base::File(base::File::FILE_ERROR_SECURITY), base::Closure());
     return;
   }
   CreateSnapshotFile(
       context.Pass(),
       url,
       base::Bind(&NativeMediaFileUtil::CreatedSnapshotFileForCreateOrOpen,
                  make_scoped_refptr(context->task_runner()),
                  file_flags,
                  callback));
 }
@@ skipping 278 matching lines @@
       url.path(),  // device file path
       snapshot_file_path,
       base::Bind(&DeviceMediaAsyncFileUtil::OnDidCreateSnapshotFile,
                  weak_ptr_factory_.GetWeakPtr(),
                  callback,
                  make_scoped_refptr(context->task_runner())),
       base::Bind(&DeviceMediaAsyncFileUtil::OnCreateSnapshotFileError,
                  weak_ptr_factory_.GetWeakPtr(),
                  callback));
 }