Move dependencies of download\base_file from chrome to content. These are all trivial file moves.

chrome/browser/mac/file_metadata.h

-// 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.
-
-#ifndef CHROME_BROWSER_MAC_FILE_METADATA_H_
-#define CHROME_BROWSER_MAC_FILE_METADATA_H_
-#pragma once
-
-class FilePath;
-class GURL;
-
-namespace file_metadata {
-
-// Adds origin metadata to the file.
-// |source| should be the source URL for the download, and |referrer| should be
-// the URL the user initiated the download from.
-void AddOriginMetadataToFile(const FilePath& file, const GURL& source,
-                             const GURL& referrer);
-
-// Adds quarantine metadata to the file, assuming it has already been
-// quarantined by the OS.
-// |source| should be the source URL for the download, and |referrer| should be
-// the URL the user initiated the download from.
-void AddQuarantineMetadataToFile(const FilePath& file, const GURL& source,
-                                 const GURL& referrer);
-
-}  // namespace file_metadata
-
-#endif  // CHROME_BROWSER_MAC_FILE_METADATA_H_