Add FileUtilities::GetFileInfo() to capture file metadata with single IPC

content/common/fileapi/webfilesystem_callback_dispatcher.cc

Index: content/common/fileapi/webfilesystem_callback_dispatcher.cc
diff --git a/content/common/fileapi/webfilesystem_callback_dispatcher.cc b/content/common/fileapi/webfilesystem_callback_dispatcher.cc
index 0020f08a96ed3e5d22c7a8ac5c9c2ab13a55196c..02181d143a82d520edb932280aea2b02344130f8 100644
--- a/content/common/fileapi/webfilesystem_callback_dispatcher.cc
+++ b/content/common/fileapi/webfilesystem_callback_dispatcher.cc
@@ -36,14 +36,8 @@ void WebFileSystemCallbackDispatcher::DidSucceed() {
 void WebFileSystemCallbackDispatcher::DidReadMetadata(
     const base::PlatformFileInfo& file_info, const FilePath& platform_path) {
   WebFileInfo web_file_info;
-  web_file_info.modificationTime = file_info.last_modified.ToDoubleT();
-  web_file_info.length = file_info.size;
-  if (file_info.is_directory)
-    web_file_info.type = WebFileInfo::TypeDirectory;
-  else
-    web_file_info.type = WebFileInfo::TypeFile;
-  web_file_info.platformPath =
-    webkit_glue::FilePathToWebString(platform_path);
+  webkit_glue::PlatformFileInfoToWebFileInfo(file_info, &web_file_info);
+  web_file_info.platformPath = webkit_glue::FilePathToWebString(platform_path);
   callbacks_->didReadMetadata(web_file_info);
 }