Mojo JS bindings: flip the default value of use_new_js_bindings to true.

url/mojo/BUILD.gn

Index: url/mojo/BUILD.gn
diff --git a/url/mojo/BUILD.gn b/url/mojo/BUILD.gn
index 528e9f72ce35151b2ac9245d7fb3f25ac4df9d21..04aae07ff104b29f14b89fb91ce3ea8d7373e72f 100644
--- a/url/mojo/BUILD.gn
+++ b/url/mojo/BUILD.gn
@@ -8,6 +8,9 @@ mojom("url_mojom_gurl") {
   sources = [
     "url.mojom",
   ]
+
+  # TODO(crbug.com/699569): Convert to use the new JS bindings.
+  use_new_js_bindings = false
 }
 
 mojom("url_mojom_origin") {
@@ -18,6 +21,9 @@ mojom("url_mojom_origin") {
   public_deps = [
     ":url_mojom_gurl",
   ]
+
+  # TODO(crbug.com/699569): Convert to use the new JS bindings.
+  use_new_js_bindings = false
 }
 
 mojom("test_url_mojom_gurl") {