Rework PerformanceTracker to make it usable with WebRTC

remoting/protocol/frame_stats.cc

+// Copyright 2016 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/protocol/frame_stats.h"
+
+#include "remoting/proto/video.pb.h"
+
+namespace remoting {
+namespace protocol {
+
+FrameStats::FrameStats() = default;
+FrameStats::FrameStats(const FrameStats&) = default;
+FrameStats::~FrameStats() = default;
+
+// static
+FrameStats FrameStats::GetForVideoPacket(const VideoPacket& packet) {
+  FrameStats result;
+  result.frame_size = packet.data().size();
+  result.time_received = base::TimeTicks::Now();
+  if (packet.has_latest_event_timestamp()) {
+    result.latest_event_timestamp =
+        base::TimeTicks::FromInternalValue(packet.latest_event_timestamp());
+  }
+  if (packet.has_capture_time_ms()) {
+    result.capture_delay =
+        base::TimeDelta::FromMilliseconds(packet.capture_time_ms());
+  }
+  if (packet.has_encode_time_ms()) {
+    result.encode_delay =
+        base::TimeDelta::FromMilliseconds(packet.encode_time_ms());
+  }
+  if (packet.has_capture_pending_time_ms()) {
+    result.capture_pending_delay =
+        base::TimeDelta::FromMilliseconds(packet.capture_pending_time_ms());
+  }
+  if (packet.has_capture_overhead_time_ms()) {
+    result.capture_overhead_delay =
+        base::TimeDelta::FromMilliseconds(packet.capture_overhead_time_ms());
+  }
+  if (packet.has_encode_pending_time_ms()) {
+    result.encode_pending_delay =
+        base::TimeDelta::FromMilliseconds(packet.encode_pending_time_ms());
+  }
+  if (packet.has_send_pending_time_ms()) {
+    result.send_pending_delay =
+        base::TimeDelta::FromMilliseconds(packet.send_pending_time_ms());
+  }
+  return result;
+}
+
+}  // namespace protocol
+}  // namespace remoting