Update 16-09-19TPAC-1.md

Author: hayatoito

meetings/16-09-19TPAC-1.md

@@ -60,6 +60,9 @@ Dominic (Google): `<button>` produces something that is focusable and has an ARI
 - [Optional topic] {DocumentOrShadowRoot or Slot}.activePath
   - https://github.com/w3c/webcomponents/issues/479
   - It looks there is no strong interests on this.
+- [Optional topic] Declarative Shadow DOM
+  - https://github.com/w3c/webcomponents/issues/71
+  - There is no clear proposals. There is no strong interests. If someone has an interest, please add a comment on the issue.
 
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