Fix webkitGetEntry for non-native files.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index dd3f90689dae6dcef63f57ed459fa37aa112dbb6..fd2e7b22c706e48ca4de74c66cd52cb4a75a7939 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -293,6 +293,7 @@ WebDragData DropDataToWebDragData(const DropData& drop_data) {
     item.storageType = WebDragData::Item::StorageTypeFileSystemFile;
     item.fileSystemURL = it->url;
     item.fileSystemFileSize = it->size;
+    item.fileSystemId = blink::WebString::fromASCII(it->filesystem_id);
     item_list.push_back(item);
   }