RTC[In/Out]boundRTPStreamStats: qpSum,framesDecoded,framesEncoded added.

webrtc/api/stats/rtcstats_objects.h

Index: webrtc/api/stats/rtcstats_objects.h
diff --git a/webrtc/api/stats/rtcstats_objects.h b/webrtc/api/stats/rtcstats_objects.h
index 429f93b755989a68793dcb46145ee586ebce422c..03caf99c5b0129769c2c202d7999a9a6b8efda16 100644
--- a/webrtc/api/stats/rtcstats_objects.h
+++ b/webrtc/api/stats/rtcstats_objects.h
@@ -307,6 +307,9 @@ class RTCRTPStreamStats : public RTCStats {
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657854
   // SLI count is only defined for |media_type == "video"|.
   RTCStatsMember<uint32_t> sli_count;
+  // TODO(hbos): Only collected for the outbound case, should also be collected
+  // for inbound case by |RTCStatsCollector|. crbug.com/657854, crbug.com/657855
+  RTCStatsMember<uint64_t> qp_sum;
 
  protected:
   RTCRTPStreamStats(const std::string& id, int64_t timestamp_us);
@@ -352,6 +355,7 @@ class RTCInboundRTPStreamStats final : public RTCRTPStreamStats {
   RTCStatsMember<double> gap_loss_rate;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657855
   RTCStatsMember<double> gap_discard_rate;
+  RTCStatsMember<uint32_t> frames_decoded;
 };
 
 // https://w3c.github.io/webrtc-stats/#outboundrtpstats-dict*
@@ -371,6 +375,7 @@ class RTCOutboundRTPStreamStats final : public RTCRTPStreamStats {
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657856
   RTCStatsMember<double> target_bitrate;
   RTCStatsMember<double> round_trip_time;
+  RTCStatsMember<uint32_t> frames_encoded;
 };
 
 // https://w3c.github.io/webrtc-stats/#transportstats-dict*