Sort #includes that got unsorted when gmock.h and gtest.h moved to webrtc/test/

webrtc/common_audio/vad/vad_unittest.cc

Index: webrtc/common_audio/vad/vad_unittest.cc
diff --git a/webrtc/common_audio/vad/vad_unittest.cc b/webrtc/common_audio/vad/vad_unittest.cc
index a3dcba96c45e6aa7e3edc352c5051f92c9f62e5d..a03f667b408defe4efaf64d287c40e5121802eab 100644
--- a/webrtc/common_audio/vad/vad_unittest.cc
+++ b/webrtc/common_audio/vad/vad_unittest.cc
@@ -12,12 +12,11 @@
 
 #include <stdlib.h>
 
-#include "webrtc/test/gtest.h"
-
 #include "webrtc/base/arraysize.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 #include "webrtc/common_audio/vad/include/webrtc_vad.h"
+#include "webrtc/test/gtest.h"
 #include "webrtc/typedefs.h"
 
 VadTest::VadTest() {}