superreview requested: [Bug 300183] Cannot attach the web page that its URL is encoded by non-UTF-8 URL encode : [Attachment 188762] Patch rv1.0

Masayuki Nakano (Mozilla Japan) <masayuki@d-toybox.com> has asked Scott
MacGregor <mscott@mozilla.org> for superreview:
Bug 300183: Cannot attach the web page that its URL is encoded by non-UTF-8 URL
encode
https://bugzilla.mozilla.org/show_bug.cgi?id=300183
Attachment 188762: Patch rv1.0
https://bugzilla.mozilla.org/attachment.cgi?id=188762&action=edit