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From: Michael Froman <mfroman@mozilla.com>
Date: Wed, 8 Oct 2025 17:49:00 +0000
Subject: Bug 1980501 - use forward class decl rather than include
audio_state.h r?ng!
This avoids code outside of libwebrtc inadvertently including
rtc_base/containers/flat_set.h which uses c++20 features. Once
the rest of the Mozilla tree is compiling with c++20, we can
remove this modification (see Bug 1768116).
Differential Revision: https://phabricator.services.mozilla.com/D267993
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/9c487a574d218cc1c261b646c501db4d159754f0
---
audio/audio_receive_stream.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/audio/audio_receive_stream.h b/audio/audio_receive_stream.h
index 4b6c57b871..3f054776d2 100644
--- a/audio/audio_receive_stream.h
+++ b/audio/audio_receive_stream.h
@@ -34,7 +34,11 @@
#include "api/transport/rtp/rtp_source.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
+// This can be removed after Bug 1768116 enables
+// c++20 builds across the entire Mozilla tree.
+#if !defined(WEBRTC_MOZILLA_BUILD)
#include "audio/audio_state.h"
+#endif
#include "call/audio_receive_stream.h"
#include "call/audio_state.h"
#include "call/syncable.h"
@@ -47,6 +51,14 @@ class PacketRouter;
class RtpStreamReceiverControllerInterface;
class RtpStreamReceiverInterface;
+// This can be removed after Bug 1768116 enables
+// c++20 builds across the entire Mozilla tree.
+#if defined(WEBRTC_MOZILLA_BUILD)
+namespace internal {
+class AudioState;
+}
+#endif
+
namespace voe {
class ChannelReceiveInterface;
} // namespace voe
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