Revert 256688 "Fix various issues in RedirectToFileResourceHandler."

trunk/src/content/browser/loader/temporary_file_stream.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 "content/browser/loader/temporary_file_stream.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/files/file_util_proxy.h"
-#include "base/memory/ref_counted.h"
-#include "content/public/browser/browser_thread.h"
-#include "net/base/file_stream.h"
-#include "webkit/common/blob/shareable_file_reference.h"
-
-using webkit_blob::ShareableFileReference;
-
-namespace content {
-
-namespace {
-
-void DidCreateTemporaryFile(
-    const CreateTemporaryFileStreamCallback& callback,
-    base::File::Error error_code,
-    base::PassPlatformFile file_handle,
-    const base::FilePath& file_path) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  if (error_code != base::File::FILE_OK) {
-    callback.Run(error_code, scoped_ptr<net::FileStream>(), NULL);
-    return;
-  }
-
-  // Cancelled or not, create the deletable_file so the temporary is cleaned up.
-  scoped_refptr<ShareableFileReference> deletable_file =
-      ShareableFileReference::GetOrCreate(
-          file_path,
-          ShareableFileReference::DELETE_ON_FINAL_RELEASE,
-          BrowserThread::GetMessageLoopProxyForThread(
-              BrowserThread::FILE).get());
-
-  scoped_ptr<net::FileStream> file_stream(new net::FileStream(
-      file_handle.ReleaseValue(),
-      base::PLATFORM_FILE_WRITE | base::PLATFORM_FILE_ASYNC,
-      NULL));
-
-  callback.Run(error_code, file_stream.Pass(), deletable_file);
-}
-
-}  // namespace
-
-void CreateTemporaryFileStream(
-    const CreateTemporaryFileStreamCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  base::FileUtilProxy::CreateTemporary(
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE).get(),
-      base::PLATFORM_FILE_ASYNC,
-      base::Bind(&DidCreateTemporaryFile, callback));
-}
-
-}  // namespace content