Emitted when the @request finishes. This signal can be emitted because the
user completed the @request calling webkit_color_chooser_request_finish(),
or cancelled it with webkit_color_chooser_request_cancel() or because the
color input element is removed from the DOM.
Emitted when the @request finishes. This signal can be emitted because the user completed the @request calling webkit_color_chooser_request_finish(), or cancelled it with webkit_color_chooser_request_cancel() or because the color input element is removed from the DOM.