Emitted when closing a #WebKitWebView is requested. This occurs when a
call is made from JavaScript's <function>window.close</function> function or
after trying to close the @web_view with webkit_web_view_try_close().
It is the owner's responsibility to handle this signal to hide or
destroy the #WebKitWebView, if necessary.
Emitted when closing a #WebKitWebView is requested. This occurs when a call is made from JavaScript's <function>window.close</function> function or after trying to close the @web_view with webkit_web_view_try_close(). It is the owner's responsibility to handle this signal to hide or destroy the #WebKitWebView, if necessary.