Revert of Move base/prefs to components/prefs

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index cf0d5a1ce313daa6fc0d4f9d9a6a80f422e8f772..3f8380c78255abc03d6bf895b80f058b2ce277c5 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -1465,17 +1465,82 @@
   }
 }
 
-# TODO(brettw) remove these forwarding targets when all references to prefs are
-# updated to point to components.
-group("prefs") {
+component("prefs") {
+  sources = [
+    "prefs/default_pref_store.cc",
+    "prefs/default_pref_store.h",
+    "prefs/json_pref_store.cc",
+    "prefs/json_pref_store.h",
+    "prefs/overlay_user_pref_store.cc",
+    "prefs/overlay_user_pref_store.h",
+    "prefs/pref_change_registrar.cc",
+    "prefs/pref_change_registrar.h",
+    "prefs/pref_member.cc",
+    "prefs/pref_member.h",
+    "prefs/pref_notifier_impl.cc",
+    "prefs/pref_notifier_impl.h",
+    "prefs/pref_registry.cc",
+    "prefs/pref_registry.h",
+    "prefs/pref_registry_simple.cc",
+    "prefs/pref_registry_simple.h",
+    "prefs/pref_service.cc",
+    "prefs/pref_service.h",
+    "prefs/pref_service_factory.cc",
+    "prefs/pref_service_factory.h",
+    "prefs/pref_store.cc",
+    "prefs/pref_store.h",
+    "prefs/pref_value_map.cc",
+    "prefs/pref_value_map.h",
+    "prefs/pref_value_store.cc",
+    "prefs/pref_value_store.h",
+    "prefs/scoped_user_pref_update.cc",
+    "prefs/scoped_user_pref_update.h",
+    "prefs/value_map_pref_store.cc",
+    "prefs/value_map_pref_store.h",
+  ]
+  if (!is_ios) {
+    sources += [
+      "prefs/base_prefs_export.h",
+      "prefs/persistent_pref_store.h",
+      "prefs/pref_filter.h",
+      "prefs/pref_notifier.h",
+      "prefs/pref_observer.h",
+      "prefs/writeable_pref_store.h",
+    ]
+  }
+
+  defines = [ "BASE_PREFS_IMPLEMENTATION" ]
+
+  deps = [
+    ":base",
+  ]
+
+  if (!is_debug) {
+    configs -= [ "//build/config/compiler:default_optimization" ]
+    configs += [ "//build/config/compiler:optimize_max" ]
+  }
+}
+
+source_set("prefs_test_support") {
+  testonly = true
+  sources = [
+    "prefs/mock_pref_change_callback.cc",
+    "prefs/mock_pref_change_callback.h",
+    "prefs/pref_store_observer_mock.cc",
+    "prefs/pref_store_observer_mock.h",
+    "prefs/testing_pref_service.cc",
+    "prefs/testing_pref_service.h",
+    "prefs/testing_pref_store.cc",
+    "prefs/testing_pref_store.h",
+  ]
+
   public_deps = [
-    "//components/prefs",
+    ":prefs",
   ]
-}
-group("prefs_test_support") {
-  testonly = true
-  public_deps = [
-    "//components/prefs:test_support",
+  deps = [
+    ":base",
+    "//testing/gmock",
+    "//testing/gtest",
   ]
 }
 
@@ -1666,6 +1731,16 @@
     "posix/file_descriptor_shuffle_unittest.cc",
     "posix/unix_domain_socket_linux_unittest.cc",
     "power_monitor/power_monitor_unittest.cc",
+    "prefs/default_pref_store_unittest.cc",
+    "prefs/json_pref_store_unittest.cc",
+    "prefs/overlay_user_pref_store_unittest.cc",
+    "prefs/pref_change_registrar_unittest.cc",
+    "prefs/pref_member_unittest.cc",
+    "prefs/pref_notifier_impl_unittest.cc",
+    "prefs/pref_service_unittest.cc",
+    "prefs/pref_value_map_unittest.cc",
+    "prefs/pref_value_store_unittest.cc",
+    "prefs/scoped_user_pref_update_unittest.cc",
     "process/memory_unittest.cc",
     "process/memory_unittest_mac.h",
     "process/memory_unittest_mac.mm",
@@ -1785,6 +1860,8 @@
     ":base",
     ":i18n",
     ":message_loop_tests",
+    ":prefs",
+    ":prefs_test_support",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",