Move coder, file_player, and file_recorder to webrtc/voice_engine

webrtc/voice_engine/coder.h

Index: webrtc/voice_engine/coder.h
diff --git a/webrtc/modules/utility/source/coder.h b/webrtc/voice_engine/coder.h
similarity index 93%
rename from webrtc/modules/utility/source/coder.h
rename to webrtc/voice_engine/coder.h
index 4855a004650b689f1711507fb19f6224337049c6..5e16b0af66d8a57d43a8074c8265289e30abf9d6 100644
--- a/webrtc/modules/utility/source/coder.h
+++ b/webrtc/voice_engine/coder.h
@@ -8,8 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
-#define WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
+#ifndef WEBRTC_VOICE_ENGINE_CODER_H_
+#define WEBRTC_VOICE_ENGINE_CODER_H_
 
 #include <memory>
 
@@ -65,4 +65,4 @@ class AudioCoder : public AudioPacketizationCallback {
 };
 }  // namespace webrtc
 
-#endif  // WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
+#endif  // WEBRTC_VOICE_ENGINE_CODER_H_