Revert of Moving MediaStreamSignaling logic into PeerConnection.

talk/app/webrtc/peerconnectionendtoend_unittest.cc

Index: talk/app/webrtc/peerconnectionendtoend_unittest.cc
diff --git a/talk/app/webrtc/peerconnectionendtoend_unittest.cc b/talk/app/webrtc/peerconnectionendtoend_unittest.cc
index eacedd4eeae0f89e8cba4d5115ab381b71fe52d3..ceabf04cf08378330cf2b481e6bfb9c5fad8a52f 100644
--- a/talk/app/webrtc/peerconnectionendtoend_unittest.cc
+++ b/talk/app/webrtc/peerconnectionendtoend_unittest.cc
@@ -364,35 +364,3 @@
   EXPECT_EQ(1U, dc_1_observer->received_message_count());
   EXPECT_EQ(1U, dc_2_observer->received_message_count());
 }
-
-// Verifies that a DataChannel added from an OPEN message functions after
-// a channel has been previously closed (webrtc issue 3778).
-// This previously failed because the new channel re-uses the ID of the closed
-// channel, and the closed channel was incorrectly still assigned to the id.
-// TODO(deadbeef): This is disabled because there's currently a race condition
-// caused by the fact that a data channel signals that it's closed before it
-// really is. Re-enable this test once that's fixed.
-TEST_F(PeerConnectionEndToEndTest,
-       DISABLED_DataChannelFromOpenWorksAfterClose) {
-  MAYBE_SKIP_TEST(rtc::SSLStreamAdapter::HaveDtlsSrtp);
-
-  CreatePcs();
-
-  webrtc::DataChannelInit init;
-  rtc::scoped_refptr<DataChannelInterface> caller_dc(
-      caller_->CreateDataChannel("data", init));
-
-  Negotiate();
-  WaitForConnection();
-
-  WaitForDataChannelsToOpen(caller_dc, callee_signaled_data_channels_, 0);
-  CloseDataChannels(caller_dc, callee_signaled_data_channels_, 0);
-
-  // Create a new channel and ensure it works after closing the previous one.
-  caller_dc = caller_->CreateDataChannel("data2", init);
-
-  WaitForDataChannelsToOpen(caller_dc, callee_signaled_data_channels_, 1);
-  TestDataChannelSendAndReceive(caller_dc, callee_signaled_data_channels_[1]);
-
-  CloseDataChannels(caller_dc, callee_signaled_data_channels_, 1);
-}