[Sync] Rename syncable_prefs to sync_preferences.

components/syncable_prefs/BUILD.gn

Index: components/syncable_prefs/BUILD.gn
diff --git a/components/syncable_prefs/BUILD.gn b/components/syncable_prefs/BUILD.gn
deleted file mode 100644
index 372ce5770fa14c382596352bda682d53bd8ffb42..0000000000000000000000000000000000000000
--- a/components/syncable_prefs/BUILD.gn
+++ /dev/null
@@ -1,71 +0,0 @@
-# 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/config/features.gni")
-
-static_library("syncable_prefs") {
-  sources = [
-    "pref_model_associator.cc",
-    "pref_model_associator.h",
-    "pref_model_associator_client.h",
-    "pref_service_syncable.cc",
-    "pref_service_syncable.h",
-    "pref_service_syncable_factory.cc",
-    "pref_service_syncable_factory.h",
-    "pref_service_syncable_observer.h",
-    "synced_pref_change_registrar.cc",
-    "synced_pref_change_registrar.h",
-    "synced_pref_observer.h",
-  ]
-
-  deps = [
-    "//base",
-    "//components/pref_registry",
-    "//components/prefs",
-    "//components/sync",
-  ]
-
-  if (enable_configuration_policy) {
-    # This define is only used for compiling the .cc files in this target.
-    defines = [ "SYNCABLE_PREFS_USE_POLICY" ]
-
-    deps += [ "//components/policy/core/browser" ]
-  }
-}
-
-static_library("test_support") {
-  testonly = true
-  sources = [
-    "pref_service_mock_factory.cc",
-    "pref_service_mock_factory.h",
-    "testing_pref_service_syncable.cc",
-    "testing_pref_service_syncable.h",
-  ]
-
-  deps = [
-    ":syncable_prefs",
-    "//base",
-    "//components/pref_registry",
-    "//components/prefs:test_support",
-    "//testing/gtest",
-  ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-  sources = [
-    "pref_model_associator_unittest.cc",
-    "pref_service_syncable_unittest.cc",
-  ]
-
-  deps = [
-    ":syncable_prefs",
-    ":test_support",
-    "//components/pref_registry",
-    "//components/prefs",
-    "//components/sync",
-    "//components/sync:test_support_model",
-    "//testing/gtest",
-  ]
-}