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

remoting/remoting.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     # TODO(dmaclach): can we pick this up some other way? Right now it's
     # duplicated from chrome.gyp
     'chromium_code': 1,
     # Use consistent strings across all platforms. Note that the plugin name
@@ skipping 1102 matching lines @@
         'host/host_port_allocator.h',
         'host/host_secret.cc',
         'host/host_secret.h',
         'host/host_status_observer.h',
         'host/host_user_interface.cc',
         'host/host_user_interface.h',
         'host/in_memory_host_config.cc',
         'host/in_memory_host_config.h',
         'host/it2me_host_user_interface.cc',
         'host/it2me_host_user_interface.h',
+        'host/jingle_session_manager_factory.cc',
+        'host/jingle_session_manager_factory.h',
         'host/json_host_config.cc',
         'host/json_host_config.h',
         'host/local_input_monitor.h',
         'host/local_input_monitor_linux.cc',
         'host/local_input_monitor_mac.mm',
         'host/local_input_monitor_thread_linux.cc',
         'host/local_input_monitor_thread_linux.h',
         'host/local_input_monitor_thread_win.cc',
         'host/local_input_monitor_thread_win.h',
         'host/local_input_monitor_win.cc',
@@ skipping 573 matching lines @@
                   '../base/allocator/allocator.gyp:allocator',
                 ],
               },
             ],
           ],
         }],
       ],  # end of 'conditions'
     },  # end of target 'remoting_unittests'
   ],  # end of targets
 }