Send traffic-management headers from extension updater.

components/update_client/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("//net/features.gni")
 
 static_library("update_client") {
   sources = [
     "action.cc",
     "action.h",
@@ skipping 46 matching lines @@
     "utils.cc",
     "utils.h",
   ]
 
   deps = [
     "//base",
     "//components/client_update_protocol",
     "//components/crx_file",
     "//components/data_use_measurement/core",
     "//components/prefs",
+    "//components/version_info:version_info",
     "//courgette:courgette_lib",
     "//crypto",
     "//net",
     "//third_party/libxml",
     "//third_party/zlib:zip",
     "//url",
   ]
 }
 
 static_library("test_support") {
@@ skipping 61 matching lines @@
     sources += [ "crx_downloader_unittest.cc" ]
   }
 
   deps = [
     ":test_support",
     ":unit_tests_bundle_data",
     ":update_client",
     "//base",
     "//components/prefs",
     "//components/prefs:test_support",
+    "//components/version_info:version_info",
     "//courgette:courgette_lib",
     "//net:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/libxml",
   ]
 }