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

remoting/client/chromoting_stats.cc

 // Copyright (c) 2011 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/chromoting_stats.h"
 
 namespace {
 
-// The default window of bandwidth and frame rate in seconds.
-const int kTimeWindow = 3;
-
 // We take the last 10 latency numbers and report the average.
-const int kLatencyWindow = 10;
+const int kLatencySampleSize = 10;
 
 }  // namespace
 
 namespace remoting {
 
 ChromotingStats::ChromotingStats()
-    : video_bandwidth_(base::TimeDelta::FromSeconds(kTimeWindow)),
-      video_frame_rate_(base::TimeDelta::FromSeconds(kTimeWindow)),
-      video_capture_ms_(kLatencyWindow),
-      video_encode_ms_(kLatencyWindow),
-      video_decode_ms_(kLatencyWindow),
-      video_paint_ms_(kLatencyWindow),
-      round_trip_ms_(kLatencyWindow) {
+    : video_bandwidth_(
+          base::TimeDelta::FromSeconds(kStatsUpdateFrequencyInSeconds)),
+      video_frame_rate_(
+          base::TimeDelta::FromSeconds(kStatsUpdateFrequencyInSeconds)),
+      video_packet_rate_(
+          base::TimeDelta::FromSeconds(kStatsUpdateFrequencyInSeconds)),
+      video_capture_ms_(kLatencySampleSize),
+      video_encode_ms_(kLatencySampleSize),
+      video_decode_ms_(kLatencySampleSize),
+      video_paint_ms_(kLatencySampleSize),
+      round_trip_ms_(kLatencySampleSize) {
 }
 
 ChromotingStats::~ChromotingStats() {
 }
 
 }  // namespace remoting