system_wrappers: rename interface -> include

BUG=webrtc:5095
R=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1413333002 .

Cr-Original-Commit-Position: refs/heads/master@{#10438}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 98f53510b222f71fdd8b799b2f33737ceeb28c61
diff --git a/video_engine/payload_router.h b/video_engine/payload_router.h
index 0d6a1ac..17bc279 100644
--- a/video_engine/payload_router.h
+++ b/video_engine/payload_router.h
@@ -18,7 +18,7 @@
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/common_types.h"
-#include "webrtc/system_wrappers/interface/atomic32.h"
+#include "webrtc/system_wrappers/include/atomic32.h"
 
 namespace webrtc {