Log VideoSendStreamImpl::Stop in logs

Removes confusion in the logs because both VideoSendStream and
VideoSendStreamImpl use the same log line.

Bug: None
Change-Id: Id9e22f23341e134667ab5f8e308732c836ab213d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/195328
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#32693}
diff --git a/video/video_send_stream_impl.cc b/video/video_send_stream_impl.cc
index ee43018..7eca3a0 100644
--- a/video/video_send_stream_impl.cc
+++ b/video/video_send_stream_impl.cc
@@ -403,7 +403,7 @@
 
 void VideoSendStreamImpl::Stop() {
   RTC_DCHECK_RUN_ON(worker_queue_);
-  RTC_LOG(LS_INFO) << "VideoSendStream::Stop";
+  RTC_LOG(LS_INFO) << "VideoSendStreamImpl::Stop";
   if (!rtp_video_sender_->IsActive())
     return;
   TRACE_EVENT_INSTANT0("webrtc", "VideoSendStream::Stop");