Copy Linux me2me script to output dir for GN builds

remoting/host/linux/linux_me2me_host.py

 #!/usr/bin/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 37 matching lines @@
 # defaults can be overridden in ~/.profile.
 DEFAULT_SIZES = "1600x1200,3840x2560"
 
 # If RANDR is not available, use a smaller default size. Only a single
 # resolution is supported in this case.
 DEFAULT_SIZE_NO_RANDR = "1600x1200"
 
 SCRIPT_PATH = os.path.abspath(sys.argv[0])
 SCRIPT_DIR = os.path.dirname(SCRIPT_PATH)
 
-IS_INSTALLED = (os.path.basename(sys.argv[0]) != 'linux_me2me_host.py')
+IS_INSTALLED = ("me2me_host" not in os.path.basename(sys.argv[0]))
 
 if IS_INSTALLED:
   HOST_BINARY_NAME = "chrome-remote-desktop-host"
 else:
   HOST_BINARY_NAME = "remoting_me2me_host"
 
 CHROME_REMOTING_GROUP_NAME = "chrome-remote-desktop"
 
 HOME_DIR = os.environ["HOME"]
 CONFIG_DIR = os.path.join(HOME_DIR, ".config/chrome-remote-desktop")
@@ skipping 560 matching lines @@
         return [session_wrapper]
   return None
 
 
 def locate_executable(exe_name):
   if IS_INSTALLED:
     # If the script is running from its installed location, search the host
     # binary only in the same directory.
     paths_to_try = [ SCRIPT_DIR ]
   else:
     paths_to_try = map(lambda p: os.path.join(SCRIPT_DIR, p),

[Sergey Ulanov, 2016/04/12 23:53:20]

If we expect this script to be in the same directory with the host binary, then
this code can be cleaned up

[Lambros, 2016/04/14 18:12:58]

Done. Since this removes out/{Debug,Release}, I added a GYP 'copies' rule for
convenience.

                        [".",
                         "../../../out/Debug",
                         "../../../out/Default",
                         "../../../out/Release"])
   for path in paths_to_try:
     exe_path = os.path.join(path, exe_name)
     if os.path.exists(exe_path):
       return exe_path
 
   raise Exception("Could not locate executable '%s'" % exe_name)
@@ skipping 749 matching lines @@
         else:
           logging.info("Host exited with status %s." % os.WEXITSTATUS(status))
       elif os.WIFSIGNALED(status):
         logging.info("Host terminated by signal %s." % os.WTERMSIG(status))
 
 
 if __name__ == "__main__":
   logging.basicConfig(level=logging.DEBUG,
                       format="%(asctime)s:%(levelname)s:%(message)s")
   sys.exit(main())