Expose codec implementation names in stats.

talk/app/webrtc/statscollector.cc

Index: talk/app/webrtc/statscollector.cc
diff --git a/talk/app/webrtc/statscollector.cc b/talk/app/webrtc/statscollector.cc
index 347a84640cf9973a72d86e5133d5b4bc038dbb72..af19c9edd5c7266655aadb7c84ef46f4aef0a999 100644
--- a/talk/app/webrtc/statscollector.cc
+++ b/talk/app/webrtc/statscollector.cc
@@ -198,6 +198,8 @@ void ExtractStats(const cricket::VoiceSenderInfo& info, StatsReport* report) {
 
 void ExtractStats(const cricket::VideoReceiverInfo& info, StatsReport* report) {
   ExtractCommonReceiveProperties(info, report);
+  report->AddString(StatsReport::kStatsValueNameDecoderImplementationName,
+                    info.decoder_implementation_name);
   report->AddInt64(StatsReport::kStatsValueNameBytesReceived,
                    info.bytes_rcvd);
   report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs,
@@ -230,6 +232,8 @@ void ExtractStats(const cricket::VideoReceiverInfo& info, StatsReport* report) {
 void ExtractStats(const cricket::VideoSenderInfo& info, StatsReport* report) {
   ExtractCommonSendProperties(info, report);
 
+  report->AddString(StatsReport::kStatsValueNameEncoderImplementationName,
+                    info.encoder_implementation_name);
   report->AddBoolean(StatsReport::kStatsValueNameBandwidthLimitedResolution,
                      (info.adapt_reason & 0x2) > 0);
   report->AddBoolean(StatsReport::kStatsValueNameCpuLimitedResolution,