Read recv timestamps from socket (posix only).

webrtc/base/asyncsocket.h

Index: webrtc/base/asyncsocket.h
diff --git a/webrtc/base/asyncsocket.h b/webrtc/base/asyncsocket.h
index 7a859be962b56ae656dcd768f009777665c6913e..5dbffb966cddb79af45ab0500ed0fccd8ed514c9 100644
--- a/webrtc/base/asyncsocket.h
+++ b/webrtc/base/asyncsocket.h
@@ -56,8 +56,11 @@ class AsyncSocketAdapter : public AsyncSocket, public sigslot::has_slots<> {
   int Connect(const SocketAddress& addr) override;
   int Send(const void* pv, size_t cb) override;
   int SendTo(const void* pv, size_t cb, const SocketAddress& addr) override;
-  int Recv(void* pv, size_t cb) override;
-  int RecvFrom(void* pv, size_t cb, SocketAddress* paddr) override;
+  int Recv(void* pv, size_t cb, int64_t* timestamp) override;
+  int RecvFrom(void* pv,
+               size_t cb,
+               SocketAddress* paddr,
+               int64_t* timestamp) override;
   int Listen(int backlog) override;
   AsyncSocket* Accept(SocketAddress* paddr) override;
   int Close() override;