[Chromoting] Make ChromotingHost's dependency on libjingle injected, instead of hard-coded.

remoting/host/simple_host_process.cc

Index: remoting/host/simple_host_process.cc
diff --git a/remoting/host/simple_host_process.cc b/remoting/host/simple_host_process.cc
index 58e3c5d294548b21c8c27fbbe6ed13d318a6d200..3c7d100f61078db4f8a6226d79c4ee3375765b5f 100644
--- a/remoting/host/simple_host_process.cc
+++ b/remoting/host/simple_host_process.cc
@@ -42,6 +42,7 @@
 #include "remoting/host/host_key_pair.h"
 #include "remoting/host/host_secret.h"
 #include "remoting/host/it2me_host_user_interface.h"
+#include "remoting/host/jingle_session_manager_factory.h"
 #include "remoting/host/json_host_config.h"
 #include "remoting/host/log_to_server.h"
 #include "remoting/host/register_support_host_request.h"
@@ -233,7 +234,10 @@ class SimpleHost : public HeartbeatSender::Listener {
     }
 
     host_ = new ChromotingHost(&context_, signal_strategy_.get(),
-                               desktop_environment_.get(), network_settings_);
+                               desktop_environment_.get(),
+                               scoped_ptr<SessionManagerFactory>(
+                                   new JingleSessionManagerFactory()),
+                               network_settings_);
 
     ServerLogEntry::Mode mode =
         is_it2me_ ? ServerLogEntry::IT2ME : ServerLogEntry::ME2ME;