Fixing some strings that go into webrtc-internals.

content/renderer/media/peer_connection_tracker.cc

Index: content/renderer/media/peer_connection_tracker.cc
diff --git a/content/renderer/media/peer_connection_tracker.cc b/content/renderer/media/peer_connection_tracker.cc
index 74af2eb2c796b16b03693b93dae6b2df66c6b1a7..70b6553ab919b059081393fd273f44d945e52603 100644
--- a/content/renderer/media/peer_connection_tracker.cc
+++ b/content/renderer/media/peer_connection_tracker.cc
@@ -177,12 +177,11 @@ static std::string SerializeConfiguration(
     const webrtc::PeerConnectionInterface::RTCConfiguration& config) {
   std::ostringstream oss;
   // TODO(hbos): Add serialization of certificate.
-  oss << "{ iceServers: " << SerializeServers(config.servers) << ", "
-      << "iceTransportPolicy: " << SerializeIceTransportType(config.type)
-      << ", "
-      << "bundlePolicy: " << SerializeBundlePolicy(config.bundle_policy) << ", "
-      << "rtcpMuxPolicy: " << SerializeRtcpMuxPolicy(config.rtcp_mux_policy)
-      << "iceCandidatePoolSize: " << config.ice_candidate_pool_size << " }";
+  oss << "{ iceServers: " << SerializeServers(config.servers)
+      << ", iceTransportPolicy: " << SerializeIceTransportType(config.type)
+      << ", bundlePolicy: " << SerializeBundlePolicy(config.bundle_policy)
+      << ", rtcpMuxPolicy: " << SerializeRtcpMuxPolicy(config.rtcp_mux_policy)
+      << ", iceCandidatePoolSize: " << config.ice_candidate_pool_size << " }";
   return oss.str();
 }
 
@@ -191,6 +190,10 @@ static std::string SerializeConfiguration(
     result = #state;                              \
     break;
 
+// Note: All of these strings need to be kept in sync with
+// peer_connection_update_table.js, in order to be displayed as friendly
+// strings on chrome://webrtc-internals.
+
 static const char* GetSignalingStateString(
     WebRTCPeerConnectionHandlerClient::SignalingState state) {
   const char* result = "";