Use createV8Entry() and toV8Value() with context and isolate defined in WebDOMFileSystem.

chrome/renderer/extensions/file_browser_handler_custom_bindings.cc

Index: chrome/renderer/extensions/file_browser_handler_custom_bindings.cc
diff --git a/chrome/renderer/extensions/file_browser_handler_custom_bindings.cc b/chrome/renderer/extensions/file_browser_handler_custom_bindings.cc
index 94019c97829389b4af36296f2cb8e9e308e51a79..521e43479c4fef05215ef21baeecaa2de354cdf8 100644
--- a/chrome/renderer/extensions/file_browser_handler_custom_bindings.cc
+++ b/chrome/renderer/extensions/file_browser_handler_custom_bindings.cc
@@ -57,9 +57,11 @@ void FileBrowserHandlerCustomBindings::GetExternalFileEntry(
             webframe,
             blink::WebFileSystemTypeExternal,
             blink::WebString::fromUTF8(file_system_name),
-            file_system_root).createV8Entry(
-                blink::WebString::fromUTF8(file_full_path),
-                entry_type));
+            file_system_root)
+            .createV8Entry(blink::WebString::fromUTF8(file_full_path),
+                           entry_type,
+                           args.Holder(),
+                           args.GetIsolate()));
 #endif
 }