Revert of Add TransportSession interface to prepare for WebRTC-based transport. (patchset #4 id:60001 of https://codereview.chromium.org/1420273002/ )

Reason for revert:
Broke android build.

Original issue's description:
> Add TransportSession interface to prepare for WebRTC-based transport.
>
> Previosly JingleSession was responsible to establishing connection
> with the peer and managing list of channels. Now the new
> IceTransportSession class (that implements TransportSession interface)
> is responsible for managing list of channels and so it will be possible
> to add support for WebRTC-based transport by adding another
> TransportSession implementation.
>
> There are no functional changes in this CL.
>
> BUG=547158
>
> Committed: https://crrev.com/7a5351f4c6e407e456978f6599d475616a69fc0b
> Cr-Commit-Position: refs/heads/master@{#356588}

TBR=jamiewalch@chromium.org,sergeyu@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=547158

Review URL: https://codereview.chromium.org/1413813006

Cr-Commit-Position: refs/heads/master@{#356595}

1 files changed, 9 insertions, 6 deletions

diff --git a/remoting/protocol/session.h b/remoting/protocol/session.h
index 4f068f8..6fcd2c6 100644
--- a/remoting/protocol/session.h
+++ b/remoting/protocol/session.h
@@ -10,11 +10,14 @@
 #include "remoting/protocol/errors.h"
 #include "remoting/protocol/session_config.h"
 
+namespace net {
+class IPEndPoint;
+}  // namespace net
+
 namespace remoting {
 namespace protocol {
 
 class StreamChannelFactory;
-class TransportSession;
 struct TransportRoute;
 
 // Generic interface for Chromotocol connection used by both client and host.
@@ -82,11 +85,11 @@ class Session {
   // Returned pointer is valid until connection is closed.
   virtual const SessionConfig& config() = 0;
 
-  // Returns TransportSession that can be used to create transport channels.
-  virtual TransportSession* GetTransportSession() = 0;
-
-  // Channel factory for QUIC-based channels. Returns nullptr when QUIC is
-  // disabled for the session.
+  // GetTransportChannelFactory() returns a factory that creates a new transport
+  // channel for each logical channel. GetMultiplexedChannelFactory() channels
+  // share a single underlying transport channel
+  virtual StreamChannelFactory* GetTransportChannelFactory() = 0;
+  virtual StreamChannelFactory* GetMultiplexedChannelFactory() = 0;
   virtual StreamChannelFactory* GetQuicChannelFactory() = 0;
 
   // Closes connection. Callbacks are guaranteed not to be called