Index: content/browser/loader/upload_data_stream_builder.cc |
diff --git a/content/browser/loader/upload_data_stream_builder.cc b/content/browser/loader/upload_data_stream_builder.cc |
index 45b22b6b892e703be9a4529444a61029eb4f1639..11c1b76353915f534fe6e0557616ff1ef19c2e4d 100644 |
--- a/content/browser/loader/upload_data_stream_builder.cc |
+++ b/content/browser/loader/upload_data_stream_builder.cc |
@@ -115,6 +115,9 @@ scoped_ptr<net::UploadDataStream> UploadDataStreamBuilder::Build( |
new FileElementReader(body, file_task_runner, element)); |
break; |
case ResourceRequestBody::Element::TYPE_FILE_FILESYSTEM: |
+ // If |body| contains any filesystem URLs, the caller should have |
+ // supplied a FileSystemContext. |
+ CHECK(file_system_context); |
element_readers.push_back( |
new content::UploadFileSystemFileElementReader( |
file_system_context, |