Add network throttling as an enterprise policy

chrome/browser/chromeos/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("//media/media_options.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 assert(is_chromeos)
@@ skipping 896 matching lines @@
     "net/delay_network_call.cc",
     "net/delay_network_call.h",
     "net/network_portal_detector_impl.cc",
     "net/network_portal_detector_impl.h",
     "net/network_portal_detector_test_impl.cc",
     "net/network_portal_detector_test_impl.h",
     "net/network_portal_notification_controller.cc",
     "net/network_portal_notification_controller.h",
     "net/network_portal_web_dialog.cc",
     "net/network_portal_web_dialog.h",
+    "net/network_throttling_observer.cc",
+    "net/network_throttling_observer.h",
     "net/onc_utils.cc",
     "net/onc_utils.h",
     "net/proxy_config_handler.cc",
     "net/proxy_config_handler.h",
     "net/wake_on_wifi_connection_observer.cc",
     "net/wake_on_wifi_connection_observer.h",
     "net/wake_on_wifi_manager.cc",
     "net/wake_on_wifi_manager.h",
     "note_taking_app_utils.cc",
     "note_taking_app_utils.h",
@@ skipping 684 matching lines @@
     "policy/proto/chrome_device_policy.proto",
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
   ]
 }