bind-gen: Update the generated file list of IDL interfaces

Bug: 839389
Change-Id: I046cd133f21f94e876602c439f308bfd760f95fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2346689Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796775}

third_party/blink/renderer/bindings/generated_in_modules.gni

@@ -1711,6 +1711,8 @@ generated_interface_sources_in_modules = [
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_picture_in_picture_event.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_picture_in_picture_window.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_picture_in_picture_window.h",
+  "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_plane.cc",
+  "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_plane.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_plugin.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_plugin.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_plugin_array.cc",