Fix V8 callback binding for "CallWith=ThisValue" attribute.

ThisValue should support "any" type other than "object".

BUG=382728

Review URL: https://codereview.chromium.org/330163004

git-svn-id: svn://svn.chromium.org/blink/trunk@176262 bbb929c8-8fbe-4397-9dbb-9b2b20218538