Copy Linux me2me script to output dir for GN builds

remoting/host/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/util/version.gni")
 import("//remoting/remoting_enable.gni")
 import("//remoting/remoting_locales.gni")
 import("//remoting/remoting_options.gni")
@@ skipping 825 matching lines @@
 
         if (is_mac && is_chrome_branded && is_official_build) {
           defines = [ "REMOTING_ENABLE_BREAKPAD" ]
         }
 
         deps = [
           ":credits",
           ":remoting_me2me_host_static",
           "//build/config/sanitizers:deps",
         ]
+
+        if (is_linux) {
+          deps += [ ":remoting_me2me_host_runner" ]
+        }
+      }
+
+      if (is_linux) {
+        copy("remoting_me2me_host_runner") {
+          sources = [
+            "linux/linux_me2me_host.py",
+          ]
+          outputs = [
+            "$root_build_dir/run_me2me_host",

[Sergey Ulanov, 2016/04/14 23:49:06]

It's confusing to use 3 different name for the same script depending on where
it's placed.

Also for people who don't work on remoting it will be confusing to see this file
in the shared output directory, as they have not idea what is "me2me_host". We
should either put our stuff under out/<..>/remoting or have remoting_ prefix for
all files. In this case I think we want to put it under a separate directory (as
we don't to rename the file). But then the host binary has to be moved as well.
How about we just use the same name that we use in
/opt/google/chrome-remote-desktop/, i.e.:

out/<..>/remoting/chrome-remote-desktop (the python script)
out/<..>/remoting/chrome-remote-desktop-host (the host binary)

That way we won't need anything special in the python script to handle the dev
mode. WDYT?

+          ]
+        }
       }
 
       executable("native_messaging_host") {
         sources = [
           "setup/me2me_native_messaging_host_entry_point.cc",
           "setup/me2me_native_messaging_host_main.cc",
           "setup/me2me_native_messaging_host_main.h",
         ]
 
         deps = [
@@ skipping 109 matching lines @@
           "//remoting/resources",
           "//third_party/icu:icudata",
         ]
       }
     } else {
       group("remoting_me2me_host_archive") {
       }
     }
   }
 }