nishio

	[HTMLElement.onpaste - Web APIs | MDN https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/onpaste]

	https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/getData

	https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Interact_with_the_clipboard

	https://developer.mozilla.org/en-US/docs/Web/API/ClipboardEvent

	サーバがGyazoの[OAuth] APIを叩く https://gyazo.com/api

	クリップボードに入ったURLを貼り付ける