Move internal aec_core defines out of header.

TBR=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1915004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4440 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed