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 e47f7f661395de1b053f167b9ce502f19915730a..f25fa82c1ad78cffa9a3fd4caeadb67117cd1a80 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -294,6 +294,7 @@ 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);
   }