Update ACM to use RTPHeader instead of WebRtcRTPHeader

Bug: webrtc:5876
Change-Id: Id3311dcf508cca34495349197eeac2edf8783772
Reviewed-on: https://webrtc-review.googlesource.com/c/123188
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26729}
diff --git a/modules/audio_coding/test/RTPFile.h b/modules/audio_coding/test/RTPFile.h
index 1d0ddf8..141075b 100644
--- a/modules/audio_coding/test/RTPFile.h
+++ b/modules/audio_coding/test/RTPFile.h
@@ -15,6 +15,7 @@
 #include <queue>
 
 #include "modules/audio_coding/include/audio_coding_module.h"
+#include "modules/include/module_common_types.h"
 #include "rtc_base/synchronization/rw_lock_wrapper.h"
 
 namespace webrtc {