Moving file_metadata files under content/browser/download

content/browser/download/file_metadata_mac.mm

 // Copyright (c) 2012 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/file_metadata_mac.h"
+#include "content/browser/download/file_metadata_mac.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <Foundation/Foundation.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/mac/mac_logging.h"
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "googleurl/src/gurl.h"
 
-namespace file_metadata {
+namespace content {
 
 // As of Mac OS X 10.4 ("Tiger"), files can be tagged with metadata describing
 // various attributes.  Metadata is integrated with the system's Spotlight
 // feature and is searchable.  Ordinarily, metadata can only be set by
 // Spotlight importers, which requires that the importer own the target file.
 // However, there's an attribute intended to describe the origin of a
 // file, that can store the source URL and referrer of a downloaded file.
 // It's stored as a "com.apple.metadata:kMDItemWhereFroms" extended attribute,
 // structured as a binary1-format plist containing a list of sources.  This
 // attribute can only be populated by the downloader, not a Spotlight importer.
@@ skipping 130 matching lines @@
 
   OSStatus os_error = LSSetItemAttribute(&file_ref, kLSRolesAll,
                                          kLSItemQuarantineProperties,
                                          quarantine_properties);
   if (os_error != noErr) {
     OSSTATUS_LOG(WARNING, os_error)
         << "Unable to set quarantine attributes on file " << file.value();
   }
 }
 
-}  // namespace file_metadata
+}  // namespace content