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

remoting/client/software_video_renderer.cc

Index: remoting/client/software_video_renderer.cc
diff --git a/remoting/client/software_video_renderer.cc b/remoting/client/software_video_renderer.cc
index 51782e05f476f4942a30408a7e52d0214cc0a80f..8c8855ddddec660ecc837068bc2e01ce1b904ed7 100644
--- a/remoting/client/software_video_renderer.cc
+++ b/remoting/client/software_video_renderer.cc
@@ -11,6 +11,7 @@
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/single_thread_task_runner.h"
 #include "remoting/base/util.h"
 #include "remoting/client/frame_consumer.h"
@@ -362,10 +363,18 @@ void SoftwareVideoRenderer::ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
 
   // Record other statistics received from host.
   stats_.video_bandwidth()->Record(packet->data().size());
-  if (packet->has_capture_time_ms())
+  if (packet->has_capture_time_ms()) {
     stats_.video_capture_ms()->Record(packet->capture_time_ms());
-  if (packet->has_encode_time_ms())
+    const base::TimeDelta capture_time =
+        base::TimeDelta::FromInternalValue(packet->capture_time_ms());
+    UMA_HISTOGRAM_TIMES("Chromoting.Video.CaptureLatency", capture_time);
+  }
+  if (packet->has_encode_time_ms()) {
     stats_.video_encode_ms()->Record(packet->encode_time_ms());
+    const base::TimeDelta encode_time =
+        base::TimeDelta::FromInternalValue(packet->encode_time_ms());
+    UMA_HISTOGRAM_TIMES("Chromoting.Video.EncodeLatency", encode_time);
+  }
   if (packet->has_latest_event_timestamp() &&
       packet->latest_event_timestamp() > latest_event_timestamp_) {
     latest_event_timestamp_ = packet->latest_event_timestamp();
@@ -373,6 +382,8 @@ void SoftwareVideoRenderer::ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
         base::Time::Now() -
         base::Time::FromInternalValue(packet->latest_event_timestamp());
     stats_.round_trip_ms()->Record(round_trip_latency.InMilliseconds());
+    UMA_HISTOGRAM_TIMES("Chromoting.Video.RoundTripLatency",
+      round_trip_latency);
   }
 
   // Measure the latency between the last packet being received and presented.