Ensure that remoting_unittests fail when playout delay > 0.

remoting/protocol/webrtc_video_renderer_adapter.cc

Index: remoting/protocol/webrtc_video_renderer_adapter.cc
diff --git a/remoting/protocol/webrtc_video_renderer_adapter.cc b/remoting/protocol/webrtc_video_renderer_adapter.cc
index 8e660333cdcd050f628321f01398fd297d0f8c94..202ed9bb3ebb2ccc416d3aedf85158fcf7b66580 100644
--- a/remoting/protocol/webrtc_video_renderer_adapter.cc
+++ b/remoting/protocol/webrtc_video_renderer_adapter.cc
@@ -95,10 +95,10 @@ void WebrtcVideoRendererAdapter::SetVideoStatsChannel(
 }
 
 void WebrtcVideoRendererAdapter::OnFrame(const webrtc::VideoFrame& frame) {
-  if (frame.timestamp_us() >= rtc::TimeMicros()) {
+  if (frame.timestamp_us() > rtc::TimeMicros()) {
     // The host sets playout delay to 0, so all incoming frames are expected to
     // be rendered as so as they are received.
-    LOG(WARNING) << "Received frame with playout delay greater than 0.";
+    NOTREACHED() << "Received frame with playout delay greater than 0.";
   }
 
   task_runner_->PostTask(