Report video and network stats averaged over 1s, and create corresponding UMA metrics.

remoting/client/software_video_renderer.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/client/software_video_renderer.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 332 matching lines @@
 }
 
 protocol::VideoStub* SoftwareVideoRenderer::GetVideoStub() {
   return this;
 }
 
 void SoftwareVideoRenderer::ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
                                                 const base::Closure& done) {
   DCHECK(CalledOnValidThread());
 
+  // Record this received packet, even if it is empty.
+  stats_.video_packet_rate()->Record(1);
+
   // If the video packet is empty then drop it. Empty packets are used to
   // maintain activity on the network.
   if (!packet->has_data() || packet->data().size() == 0) {
     done.Run();
     return;
   }
 
-  // Add one frame to the counter.
+  // Add one frame to the video frame rate counter.
   stats_.video_frame_rate()->Record(1);
 
   // Record other statistics received from host.
   stats_.video_bandwidth()->Record(packet->data().size());
   if (packet->has_capture_time_ms())
     stats_.video_capture_ms()->Record(packet->capture_time_ms());
   if (packet->has_encode_time_ms())
     stats_.video_encode_ms()->Record(packet->encode_time_ms());
   if (packet->has_latest_event_timestamp() &&
       packet->latest_event_timestamp() > latest_event_timestamp_) {
@@ skipping 50 matching lines @@
   DCHECK(CalledOnValidThread());
 
   // Record the latency between the packet being received and presented.
   stats_.video_decode_ms()->Record(
       (base::Time::Now() - decode_start).InMilliseconds());
 
   done.Run();
 }
 
 }  // namespace remoting