Revert of Upstream Chrome on iOS source code [11/11].

ios/chrome/browser/BUILD.gn

 # Copyright 2015 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/buildflag_header.gni")
 import("//build/config/features.gni")
 import("//build/config/ios/rules.gni")
 import("//rlz/features/features.gni")
 import("//third_party/protobuf/proto_library.gni")
 
@@ skipping 203 matching lines @@
     "resources/Settings.bundle/Root.plist",
   ]
   outputs = [
     "{{bundle_resources_dir}}/Settings.bundle/{{source_file_part}}",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "callback_counter_unittest.mm",
     "chrome_url_util_unittest.mm",
     "crash_loop_detection_util_unittest.mm",
     "install_time_util_unittest.mm",
     "installation_notifier_unittest.mm",
     "ios_chrome_io_thread_unittest.mm",
     "notification_promo_unittest.cc",
   ]
   deps = [
     ":browser",
-    ":browser_internal",
     "//base",
     "//base/test:test_support",
     "//components/prefs",
     "//components/prefs:test_support",
     "//components/proxy_config",
     "//components/ssl_config",
     "//components/variations",
     "//ios/web:test_support",
     "//net",
     "//net:test_support",
     "//testing/gtest",
     "//url",
   ]
 }
-
-source_set("browser_internal") {
-  sources = [
-    "callback_counter.h",
-    "callback_counter.mm",
-  ]
-  deps = [
-    "//base",
-  ]
-}
-
-source_set("downstream_provider") {
-  sources = [
-    "downstream_chromium_browser_provider.h",
-    "downstream_chromium_browser_provider.mm",
-  ]
-  deps = [
-    "//base",
-    "//components/handoff",
-    "//components/pref_registry",
-    "//components/prefs",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/autofill:autofill_internal",
-    "//ios/chrome/browser/browser_state",
-    "//ios/chrome/browser/browser_state:browser_state_impl",
-    "//ios/chrome/browser/providers",
-    "//ios/chrome/browser/sessions:sessions_internal",
-    "//ios/chrome/browser/sync/glue",
-    "//ios/chrome/browser/sync/sessions",
-    "//ios/chrome/browser/tabs",
-    "//ios/chrome/browser/tabs:tabs_internal",
-    "//ios/chrome/browser/ui",
-    "//ios/chrome/browser/ui:browser_list",
-    "//ios/chrome/browser/ui/autofill:autofill_internal",
-    "//ios/chrome/browser/ui/bookmarks",
-    "//ios/chrome/browser/ui/infobars",
-    "//ios/chrome/browser/ui/webui:webui_internal",
-    "//ios/chrome/common",
-  ]
-}
-
-source_set("downstream_provider_factory") {
-  sources = [
-    "downstream_chromium_browser_provider_factory.mm",
-  ]
-  deps = [
-    ":downstream_provider",
-    "//base",
-    "//ios/public/provider/chrome/browser",
-  ]
-}
-
-# Clean Skeleton targets
-source_set("browser_clean_skeleton") {
-  sources = [
-    "browser_coordinator+internal.h",
-    "browser_coordinator.h",
-    "browser_coordinator.mm",
-    "url_opening.h",
-  ]
-
-  configs += [ "//build/config/compiler:enable_arc" ]
-
-  deps = [
-    "//base",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/browser_state",
-  ]
-}