[Variations] Bring variations_http_header_provider to variations component

chrome/browser/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//tools/grit/grit_rule.gni")
 
 about_credits_file = "$target_gen_dir/about_credits.html"
@@ skipping 17 matching lines @@
   # non-iOS deps below.
   deps = [
     "//base/allocator",
     "//chrome:extra_resources",
     "//chrome:resources",
     "//chrome:strings",
     "//chrome/app:generated_resources_map",
     "//chrome/app/resources:platform_locale_settings",
     "//chrome/app/theme:theme_resources",
     "//chrome/browser/history:in_memory_url_index_cache_proto",
-    "//chrome/browser/metrics/variations/proto:proto",
     "//chrome/browser/net:cert_logger_proto",
     "//chrome/browser/net:probe_message_proto",
     "//chrome/browser/search/suggestions/proto",
     "//chrome/common",
     "//chrome/common/net",
     "//components/autofill/core/browser",
     "//components/cloud_devices/common",
     "//components/metrics:net",
     "//components/navigation_metrics",
     "//components/os_crypt",
@@ skipping 603 matching lines @@
 # TODO(GYP) write internal action
 if (false) {  #if (is_chrome_branded) {
   action("chrome_internal_resources_gen") {
     # TODO(GYP)
   }
 } else {
   group("chrome_internal_resources_gen") {
     # Empty placeholder.
   }
 }