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

webrtc/modules/audio_processing/audio_processing_impl.h

@@ -82,7 +82,7 @@ class AudioProcessingImpl : public AudioProcessing {
   virtual VoiceDetection* voice_detection() const;
 
   // Module methods.
-  virtual WebRtc_Word32 ChangeUniqueId(const WebRtc_Word32 id);
+  virtual int32_t ChangeUniqueId(const int32_t id);
 
  private:
   bool is_data_processed() const;