Componentize //chrome/browser/prefs/tracked.

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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//third_party/protobuf/proto_library.gni")
 
@@ skipping 130 matching lines @@
     "//components/strings",
     "//components/suggestions",
     "//components/sync_driver",
     "//components/translate/core/browser",
     "//components/translate/core/common",
     "//components/ui/zoom:ui_zoom",
     "//components/undo",
     "//components/update_client",
     "//components/url_fixer",
     "//components/user_prefs",
+    "//components/user_prefs:user_prefs_tracked",
     "//components/variations",
     "//components/variations/net",
     "//components/webdata/common",
     "//components/webdata_services",
     "//components/web_resource",
     "//content/public/browser",
     "//content/public/common",
     "//courgette:courgette_lib",
     "//crypto",
     "//google_apis",
@@ skipping 1045 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }