bind-gen: Update the generated file list

Bug: 839389
Change-Id: I521397e8ea474bdf7a66d2b28d38508e06fe389c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2251525Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#780250}

third_party/blink/renderer/bindings/generated_in_core.gni

@@ -246,6 +246,8 @@ generated_interface_sources_in_core = [
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_rule_list.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_scale.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_scale.h",
+  "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_scroll_timeline_rule.cc",
+  "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_scroll_timeline_rule.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_skew.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_skew.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/core/v8/v8_css_skew_x.cc",