PeerConnection::RemoveStream now removes the local stream even when it's closed. Updated the unit test accordingly.

RISK=P3
TESTED=PeerConnectionInterfaceTest.CloseAndTestMethods
TBR=fischman_webrtc

Review URL: https://webrtc-codereview.appspot.com/2018005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4535 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/app/webrtc/peerconnectioninterface_unittest.cc b/talk/app/webrtc/peerconnectioninterface_unittest.cc
index d743684..e4f6e28 100644
--- a/talk/app/webrtc/peerconnectioninterface_unittest.cc
+++ b/talk/app/webrtc/peerconnectioninterface_unittest.cc
@@ -1193,7 +1193,7 @@
   ASSERT_FALSE(local_stream->GetAudioTracks().empty());
   talk_base::scoped_refptr<webrtc::DtmfSenderInterface> dtmf_sender(
       pc_->CreateDtmfSender(local_stream->GetAudioTracks()[0]));
-  EXPECT_FALSE(dtmf_sender->CanInsertDtmf());
+  EXPECT_TRUE(NULL == dtmf_sender);  // local stream has been removed.
 
   EXPECT_TRUE(pc_->CreateDataChannel("test", NULL) == NULL);