Replace scoped_ptr with unique_ptr in webrtc/modules/audio_processing/vad/

webrtc/modules/audio_processing/vad/common.h

Index: webrtc/modules/audio_processing/vad/common.h
diff --git a/webrtc/modules/audio_processing/vad/common.h b/webrtc/modules/audio_processing/vad/common.h
index be99c1c59d4596cd06967d3a0a443add94097408..4b7fb50f9812c5c524f9b14a0d1c2d08bf41f570 100644
--- a/webrtc/modules/audio_processing/vad/common.h
+++ b/webrtc/modules/audio_processing/vad/common.h
@@ -11,6 +11,8 @@
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_VAD_COMMON_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_VAD_COMMON_H_
 
+#include <stddef.h>
+

[peah-webrtc, 2016/02/17 11:54:01]

Why is this include needed in the common file? Is it not sufficient to add
includes in the other files?

[kwiberg-webrtc, 2016/02/17 12:13:19]

We get size_t from there. Some other change in this CL made it so that stddef.h
was no longer included before vad/common.h by everyone, which triggered the
latent bug.

 static const int kSampleRateHz = 16000;
 static const size_t kLength10Ms = kSampleRateHz / 100;
 static const size_t kMaxNumFrames = 4;