Fix GN build on mac with icu_use_data_file = false

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/config/win/manifest.gni")
 import("//build/util/version.gni")
 import("//chrome/version.gni")
 import("//remoting/remoting_enable.gni")
 import("//remoting/remoting_locales.gni")
 import("//remoting/remoting_options.gni")
 import("//remoting/remoting_srcs.gni")
 import("//remoting/remoting_version.gni")
 import("//remoting/tools/build/remoting_localize.gni")
 
 process_version("remoting_version") {
   template_file = "//remoting/host/version.h.in"
   sources = [
     branding_path,
   ]
   output = "$target_gen_dir/version.h"
 }
 
 if (is_win) {
   import("//remoting/host/predefines_win.gni")
 } else if (is_mac) {
   import("//build/config/mac/rules.gni")
+  import("//third_party/icu/config.gni")
 }
 
 # Reference this manifest to indicate that a process is per-monitor DPI aware.
 dpi_aware_manifest = "//remoting/host/win/dpi_aware.manifest"
 
 # Depending on this target gives a default executable manifest with the addition
 # of the DPI aware tag.
 windows_manifest("dpi_aware_exe_manifest") {
   sources = [
     as_invoker_manifest,
@@ skipping 930 matching lines @@
 
       mac_xib_bundle_data("remoting_host_xibs") {
         sources = [
           "disconnect_window.xib",
         ]
       }
 
       bundle_data("remoting_host_resources") {
         sources = [
           "$root_gen_dir/remoting/CREDITS.txt",
-          "$root_out_dir/icudtl.dat",
           "remoting_me2me_host.icns",
         ]
 
+        if (icu_use_data_file) {
+          sources += [ "$root_out_dir/icudtl.dat" ]
+        }
+
         outputs = [
           "{{bundle_resources_dir}}/{{source_file_part}}",
         ]
 
         public_deps = [
           ":credits",
           "//third_party/icu:icudata",
         ]
       }
     }
@@ skipping 608 matching lines @@
                       root_build_dir),
           rebase_path(outputs[0], root_build_dir),
         ]
       }
     } else {
       group("remoting_host_installation") {
       }
     }
   }
 }