Move the core download files to content.

chrome/browser/download/download_file.cc

-// Copyright (c) 2011 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/download/download_file.h"
-
-#include <string>
-
-#include "base/file_util.h"
-#include "base/stringprintf.h"
-#include "chrome/browser/download/download_create_info.h"
-#include "chrome/browser/download/download_manager.h"
-#include "chrome/browser/download/download_util.h"
-#include "content/browser/browser_thread.h"
-
-DownloadFile::DownloadFile(const DownloadCreateInfo* info,
-                           DownloadManager* download_manager)
-    : BaseFile(info->save_info.file_path,
-               info->url(),
-               info->referrer_url,
-               info->received_bytes,
-               info->save_info.file_stream),
-      id_(info->download_id),
-      request_handle_(info->request_handle),
-      download_manager_(download_manager) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-}
-
-DownloadFile::~DownloadFile() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-}
-
-void DownloadFile::CancelDownloadRequest() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  request_handle_.CancelRequest();
-}
-
-DownloadManager* DownloadFile::GetDownloadManager() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  return download_manager_.get();
-}
-
-std::string DownloadFile::DebugString() const {
-  return base::StringPrintf("{"
-                            " id_ = " "%d"
-                            " request_handle = %s"
-                            " Base File = %s"
-                            " }",
-                            id_,
-                            request_handle_.DebugString().c_str(),
-                            BaseFile::DebugString().c_str());
-}