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

remoting/tools/me2me_virtual_host.py

 #!/usr/bin/env python
 # 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.
 
 # Virtual Me2Me implementation.  This script runs and manages the processes
 # required for a Virtual Me2Me desktop, which are: X server, X desktop
 # session, and Host process.
 # This script is intended to run continuously as a background daemon
 # process, running under an ordinary (non-root) user account.
@@ skipping 215 matching lines @@
         os.mkfifo(pipe_name)
     except IOError, e:
       logging.error("Failed to create pulseaudio pipe: " + str(e))
       return False
 
     try:
       pulse_config = open(os.path.join(pulse_path, "default.pa"), "w")
       pulse_config.write("load-module module-native-protocol-unix\n")
       pulse_config.write(
           ("load-module module-pipe-sink sink_name=%s file=\"%s\" " +
-           "rate=44100 channels=2 format=s16le\n") %
+           "rate=48000 channels=2 format=s16le\n") %
           (sink_name, pipe_name))
       pulse_config.close()
     except IOError, e:
       logging.error("Failed to write pulseaudio config: " + str(e))
       return False
 
     self.child_env["PULSE_CONFIG_PATH"] = pulse_path
     self.child_env["PULSE_RUNTIME_PATH"] = pulse_path
     self.child_env["PULSE_STATE_PATH"] = pulse_path
     self.child_env["PULSE_SINK"] = sink_name
@@ skipping 768 matching lines @@
         logging.info("Host domain is blocked by policy - exiting.")
         os.remove(host.config_file)
         return 0
       # Nothing to do for Mac-only status 6 (login screen unsupported)
 
 
 if __name__ == "__main__":
   logging.basicConfig(level=logging.DEBUG,
                       format="%(asctime)s:%(levelname)s:%(message)s")
   sys.exit(main())