Fix AudioCapturer implementation to read from audio pipe even when there are no active clients.

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,
 
@@ skipping 1532 matching lines @@
         'host/ipc_consts.cc',
         'host/ipc_consts.h',
         'host/ipc_desktop_environment_factory.cc',
         'host/ipc_desktop_environment_factory.h',
         'host/ipc_desktop_environment.cc',
         'host/ipc_desktop_environment.h',
         'host/it2me_host_user_interface.cc',
         'host/it2me_host_user_interface.h',
         'host/json_host_config.cc',
         'host/json_host_config.h',
+        'host/linux/audio_pipe_reader.cc',
+        'host/linux/audio_pipe_reader.h',
         'host/linux/x11_util.cc',
         'host/linux/x11_util.h',
         'host/linux/x_server_clipboard.cc',
         'host/linux/x_server_clipboard.h',
         'host/linux/x_server_pixel_buffer.cc',
         'host/linux/x_server_pixel_buffer.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',
@@ skipping 657 matching lines @@
                   '../base/allocator/allocator.gyp:allocator',
                 ],
               },
             ],
           ],
         }],  # end of 'toolkit_uses_gtk == 1'
       ],  # end of 'conditions'
     },  # end of target 'remoting_unittests'
   ],  # end of targets
 }