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fbarchard@google.com committed 50d7bf4a8b8
if types are already defined, dont define them again. BUG=180 TEST=none Review URL: https://webrtc-codereview.appspot.com/1098004 git-svn-id: http://libyuv.googlecode.com/svn/trunk@558 16f28f9a-4ce2-e073-06de-1de4eb20be90