audio_processing: Create now returns a pointer to the object

webrtc/modules/audio_processing/aec/aec_resampler.h

Index: webrtc/modules/audio_processing/aec/aec_resampler.h
diff --git a/webrtc/modules/audio_processing/aec/aec_resampler.h b/webrtc/modules/audio_processing/aec/aec_resampler.h
index debe069eee697059f19063aa07b3d9afa5fb412f..a37499258f317217a94806658aac5fc3ce5af5da 100644
--- a/webrtc/modules/audio_processing/aec/aec_resampler.h
+++ b/webrtc/modules/audio_processing/aec/aec_resampler.h
@@ -20,8 +20,8 @@ enum {
   kResamplerBufferSize = FRAME_LEN * 4
 };
 
-// Unless otherwise specified, functions return 0 on success and -1 on error
-int WebRtcAec_CreateResampler(void** resampInst);
+// Unless otherwise specified, functions return 0 on success and -1 on error.
+void* WebRtcAec_CreateResampler();  // Returns NULL on error.
 int WebRtcAec_InitResampler(void* resampInst, int deviceSampleRateHz);
 void WebRtcAec_FreeResampler(void* resampInst);