Reset prev_unwrapped_timestamp_ in TimestampExtrapolator::Reset

Bug: b/325916306
Change-Id: I7c52ed45d02c8e602670f5e8e345543fed4523f3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342860
Reviewed-by: Stefan Holmer <holmer@google.com>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41897}
diff --git a/video/video_receive_stream2_unittest.cc b/video/video_receive_stream2_unittest.cc
index 10b9d88..f4802e4 100644
--- a/video/video_receive_stream2_unittest.cc
+++ b/video/video_receive_stream2_unittest.cc
@@ -1020,7 +1020,8 @@
           .Build());
   EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kWrapAroundRtp), _))
       .Times(1);
-  EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame());
+  EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Seconds(1)),
+              RenderedFrame());
 
   video_receive_stream_->Stop();
 }