[Chromoting] Implement host safe-mode

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/util/process_version.gni")
 import("//media/media_options.gni")
 import("//remoting/build/config/remoting_build.gni")
 
 group("all_tests") {
   testonly = true
@@ skipping 227 matching lines @@
     "register_support_host_request.cc",
     "register_support_host_request.h",
     "remote_input_filter.cc",
     "remote_input_filter.h",
     "resizing_host_observer.cc",
     "resizing_host_observer.h",
     "resources.h",
     "resources_linux.cc",
     "resources_mac.cc",
     "resources_win.cc",
+    "safe_mode.cc",
+    "safe_mode.h",
     "sas_injector.h",
     "sas_injector_win.cc",
     "screen_controls.h",
     "screen_resolution.cc",
     "screen_resolution.h",
     "server_log_entry_host.cc",
     "server_log_entry_host.h",
     "shutdown_watchdog.cc",
     "shutdown_watchdog.h",
     "signaling_connector.cc",
@@ skipping 540 matching lines @@
     group("remoting_me2me_host_archive") {
       deps = [
         "//remoting/host/installer/mac:remoting_me2me_host_archive",
       ]
     }
   } else {
     group("remoting_me2me_host_archive") {
     }
   }
 }