WebRtc_Word32 -> int32_t in audio_processing/

BUG=314

Review URL: https://webrtc-codereview.appspot.com/1307004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3809 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index 0c74893..922490b 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -575,7 +575,7 @@
   return voice_detection_;
 }
 
-WebRtc_Word32 AudioProcessingImpl::ChangeUniqueId(const WebRtc_Word32 id) {
+int32_t AudioProcessingImpl::ChangeUniqueId(const int32_t id) {
   CriticalSectionScoped crit_scoped(crit_);
   id_ = id;