[Remoting Host] Handle text event characters that are not presented on the keyboard

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("//remoting/build/config/remoting_build.gni")
 
 process_version("remoting_version") {
   template_file = "//remoting/host/version.h.in"
   sources = [
     branding_path,
@@ skipping 246 matching lines @@
     "linux/audio_pipe_reader.cc",
     "linux/audio_pipe_reader.h",
     "linux/certificate_watcher.cc",
     "linux/certificate_watcher.h",
     "linux/unicode_to_keysym.cc",
     "linux/unicode_to_keysym.h",
     "linux/x11_util.cc",
     "linux/x11_util.h",
     "linux/x_server_clipboard.cc",
     "linux/x_server_clipboard.h",
+    "linux/x_server_key_mapper.cc",
+    "linux/x_server_key_mapper.h",
     "local_input_monitor.h",
     "local_input_monitor_android.cc",
     "local_input_monitor_chromeos.cc",
     "local_input_monitor_mac.mm",
     "local_input_monitor_win.cc",
     "local_input_monitor_x11.cc",
     "logging.h",
     "logging_linux.cc",
     "logging_mac.cc",
     "logging_win.cc",
@@ skipping 1624 matching lines @@
                       root_build_dir),
           rebase_path(outputs[0], root_build_dir),
         ]
       }
     } else {
       group("remoting_host_installation") {
       }
     }
   }
 }