Notes:
* Source code for webrtc from https://chromium.googlesource.com/external/webrtc circa Oct 2015.

Modification to original source to build on VS2005 which don't support C99 syntax 
(declare all variables at the beginning of a scope block).
- modules\audio_processing\aec\aec_core.c
- modules\audio_processing\ns\ns_core.c
- modules\audio_processing\ns\nsx_core.c