[Chromoting] Implement HostExperimentSessionPlugin

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 144 matching lines @@
     "host_config.cc",
     "host_config.h",
     "host_config_constants.cc",
     "host_details.cc",
     "host_details.h",
     "host_event_logger.h",
     "host_event_logger_posix.cc",
     "host_event_logger_win.cc",
     "host_exit_codes.cc",
     "host_exit_codes.h",
+    "host_experiment_session_plugin.cc",
+    "host_experiment_session_plugin.h",
     "host_export.h",
     "host_extension.h",
     "host_extension_session.h",
     "host_extension_session_manager.cc",
     "host_extension_session_manager.h",
     "host_power_save_blocker.cc",
     "host_power_save_blocker.h",
     "host_secret.cc",
     "host_secret.h",
     "host_session_options.cc",
@@ skipping 316 matching lines @@
     "client_session_unittest.cc",
     "config_file_watcher_unittest.cc",
     "daemon_process_unittest.cc",
     "desktop_process_unittest.cc",
     "gcd_rest_client_unittest.cc",
     "gcd_state_updater_unittest.cc",
     "heartbeat_sender_unittest.cc",
     "host_attributes_unittest.cc",
     "host_change_notification_listener_unittest.cc",
     "host_config_unittest.cc",
+    "host_experiment_session_plugin_unittest.cc",
     "host_extension_session_manager_unittest.cc",
     "host_power_save_blocker_unittest.cc",
     "host_session_options_unittest.cc",
     "host_status_logger_unittest.cc",
     "ipc_desktop_environment_unittest.cc",
     "it2me/it2me_confirmation_dialog_proxy_unittest.cc",
     "it2me/it2me_host_unittest.cc",
     "it2me/it2me_native_messaging_host_unittest.cc",
     "linux/audio_pipe_reader_unittest.cc",
     "linux/certificate_watcher_unittest.cc",
@@ skipping 322 matching lines @@
     group("remoting_me2me_host_archive") {
       deps = [
         "//remoting/host/installer/mac:remoting_me2me_host_archive",
       ]
     }
   } else {
     group("remoting_me2me_host_archive") {
     }
   }
 }