Change reporting of timing frames conditions in GetStats on receive side

webrtc/api/video/video_timing.h

Index: webrtc/api/video/video_timing.h
diff --git a/webrtc/api/video/video_timing.h b/webrtc/api/video/video_timing.h
index f5134636ba1c7e5cd3d83aafb2bbfe6e09bf0e3c..e75c0c10703e0c36107449ae5b670252b1173499 100644
--- a/webrtc/api/video/video_timing.h
+++ b/webrtc/api/video/video_timing.h
@@ -89,6 +89,10 @@ struct TimingFrameInfo {
 
   std::string ToString() const;
 
+  bool operator<(const TimingFrameInfo& other) const;
+
+  bool operator<=(const TimingFrameInfo& other) const;
+
   uint32_t rtp_timestamp;  // Identifier of a frame.
   // All timestamps below are in local monotonous clock of a receiver.
   // If sender clock is not yet estimated, sender timestamps