RefCounted types should not have public destructors, chrome/nacl edition

Additionally, convert a scoped_ptr<> to a scoped_refptr<>

BUG=123295
TEST=none


Review URL: http://codereview.chromium.org/10069051

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134186 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed