IA2 role is not correct for input type attribute in button & checkbox state with aria-role menu as parent.

According to latest editor draft(http://rawgit.com/w3c/html-api-map/master/index.html)

For input type attribute in button state with aria role menu as parent, IA2 role
should be ROLE_SYSTEM_MENUITEM and in checkbox state with aria-role menu as parent,
IA2 role should be IA2_ROLE_CHECK_MENU_ITEM.

This is continuation of this CL https://codereview.chromium.org/589383004/ where the case for aria-role menu was missed.
BUG=169574

Review URL: https://codereview.chromium.org/629173002

git-svn-id: svn://svn.chromium.org/blink/trunk@183314 bbb929c8-8fbe-4397-9dbb-9b2b20218538