Upgrade Blink to milliseconds-based last modified filetimes, part 2.

content/child/file_info_util.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/child/file_info_util.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/public/platform/WebFileInfo.h"
 
 namespace content {
 
 void FileInfoToWebFileInfo(const base::File::Info& file_info,
                            blink::WebFileInfo* web_file_info) {
   DCHECK(web_file_info);
   // WebKit now expects NaN as uninitialized/null Date.
-  if (file_info.last_modified.is_null())
+  if (file_info.last_modified.is_null()) {
     web_file_info->modificationTime = std::numeric_limits<double>::quiet_NaN();
-  else
+    web_file_info->modificationTimeMS =
+        std::numeric_limits<double>::quiet_NaN();
+  } else {
     web_file_info->modificationTime = file_info.last_modified.ToDoubleT();
+    web_file_info->modificationTimeMS = file_info.last_modified.ToJsTime();
+  }
   web_file_info->length = file_info.size;
   if (file_info.is_directory)
     web_file_info->type = blink::WebFileInfo::TypeDirectory;
   else
     web_file_info->type = blink::WebFileInfo::TypeFile;
 }
 
 static_assert(std::numeric_limits<double>::has_quiet_NaN,
               "should have quiet NaN");
 
 }  // namespace content