Move smoothing filter to common audio and exp_filter to base/analytics.

webrtc/common_audio/mocks/mock_smoothing_filter.h

Index: webrtc/common_audio/mocks/mock_smoothing_filter.h
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_smoothing_filter.h b/webrtc/common_audio/mocks/mock_smoothing_filter.h
similarity index 60%
rename from webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_smoothing_filter.h
rename to webrtc/common_audio/mocks/mock_smoothing_filter.h
index 745ca98ea6a3c519ae0e55b582cbc2ebe01f70d7..6b2991b22f91d736fa1e5849fc94d5b8573716db 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_smoothing_filter.h
+++ b/webrtc/common_audio/mocks/mock_smoothing_filter.h
@@ -8,22 +8,20 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_SMOOTHING_FILTER_H_
-#define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_SMOOTHING_FILTER_H_
+#ifndef WEBRTC_COMMON_AUDIO_MOCKS_MOCK_SMOOTHING_FILTER_H_
+#define WEBRTC_COMMON_AUDIO_MOCKS_MOCK_SMOOTHING_FILTER_H_
 
-#include "webrtc/modules/audio_coding/audio_network_adaptor/smoothing_filter.h"
+#include "webrtc/common_audio/smoothing_filter.h"
 #include "webrtc/test/gmock.h"
 
 namespace webrtc {
 
 class MockSmoothingFilter : public SmoothingFilter {
  public:
-  virtual ~MockSmoothingFilter() { Die(); }
-  MOCK_METHOD0(Die, void());
   MOCK_METHOD1(AddSample, void(float));
   MOCK_CONST_METHOD0(GetAverage, rtc::Optional<float>());
 };
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_SMOOTHING_FILTER_H_
+#endif  // WEBRTC_COMMON_AUDIO_MOCKS_MOCK_SMOOTHING_FILTER_H_