Name change from stream label to stream id for spec compliance.

Bug: webrtc:7932
Change-Id: I66f33597342394083256f050cac2a00a68042302
Reviewed-on: https://webrtc-review.googlesource.com/59280
Commit-Queue: Seth Hampson <shampson@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22276}
diff --git a/pc/peerconnection_rtp_unittest.cc b/pc/peerconnection_rtp_unittest.cc
index 351905d..4d67b4b 100644
--- a/pc/peerconnection_rtp_unittest.cc
+++ b/pc/peerconnection_rtp_unittest.cc
@@ -187,11 +187,11 @@
   auto caller = CreatePeerConnection();
   auto callee = CreatePeerConnection();
 
-  const char kSharedStreamLabel[] = "shared_audio_stream";
+  const char kSharedStreamId[] = "shared_audio_stream";
   auto sender1 = caller->AddTrack(caller->CreateAudioTrack("audio_track1"),
-                                  {kSharedStreamLabel});
+                                  {kSharedStreamId});
   auto sender2 = caller->AddTrack(caller->CreateAudioTrack("audio_track2"),
-                                  {kSharedStreamLabel});
+                                  {kSharedStreamId});
   ASSERT_TRUE(
       callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal(),
                                    static_cast<webrtc::RTCError*>(nullptr)));
@@ -408,11 +408,11 @@
   auto caller = CreatePeerConnection();
   auto callee = CreatePeerConnection();
 
-  const char kSharedStreamLabel[] = "shared_audio_stream";
+  const char kSharedStreamId[] = "shared_audio_stream";
   auto sender1 = caller->AddTrack(caller->CreateAudioTrack("audio_track1"),
-                                  {kSharedStreamLabel});
+                                  {kSharedStreamId});
   auto sender2 = caller->AddTrack(caller->CreateAudioTrack("audio_track2"),
-                                  {kSharedStreamLabel});
+                                  {kSharedStreamId});
   ASSERT_TRUE(
       callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal(),
                                    static_cast<webrtc::RTCError*>(nullptr)));