Update GN build files for new prefs location.

components/invalidation/impl/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.
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 source_set("impl") {
   sources = [
@@ skipping 21 matching lines @@
     "unacked_invalidation_set.cc",
     "unacked_invalidation_set.h",
   ]
 
   public_deps = [
     "//components/invalidation/public",
   ]
   deps = [
     "//base",
     "//base:i18n",
-    "//base:prefs",
     "//components/data_use_measurement/core",
     "//components/gcm_driver",
     "//components/keyed_service/core",
     "//components/pref_registry",
+    "//components/prefs",
     "//components/signin/core/browser",
     "//google_apis",
     "//jingle:notifier",
     "//net:net",
 
     # TODO(sync): Remove this (http://crbug.com/133352);
     "//third_party/protobuf:protobuf_lite",
   ]
 
   if (!is_android) {
@@ skipping 43 matching lines @@
 
 source_set("unit_tests") {
   testonly = true
   sources = [
     "invalidation_logger_unittest.cc",
   ]
   deps = [
     ":impl",
     ":test_support",
     "//base",
-    "//base:prefs",
+    "//components/prefs",
     "//testing/gmock",
     "//testing/gtest",
   ]
 
   if (is_android) {
     sources += [ "invalidation_service_android_unittest.cc" ]
     deps += [ ":jni_headers" ]
   } else {
     # Non-Android tests.
     sources += [
@@ skipping 119 matching lines @@
       "//base:base_java_test_support",
     ]
   }
   generate_jni("jni_headers") {
     sources = [
       "android/java/src/org/chromium/components/invalidation/InvalidationService.java",
     ]
     jni_package = "components/invalidation"
   }
 }