Mojom interface for Preferences

components/prefs/BUILD.gn

Index: components/prefs/BUILD.gn
diff --git a/components/prefs/BUILD.gn b/components/prefs/BUILD.gn
index 032ed18e172c2049d29e04c2989769443a23d513..02ccaaf1bc93f474e621adda1a865a0fea9e25f5 100644
--- a/components/prefs/BUILD.gn
+++ b/components/prefs/BUILD.gn
@@ -18,6 +18,8 @@ component("prefs") {
     "pref_member.h",
     "pref_notifier_impl.cc",
     "pref_notifier_impl.h",
+    "pref_observer_store.cc",
+    "pref_observer_store.h",
     "pref_registry.cc",
     "pref_registry.h",
     "pref_registry_simple.cc",
@@ -52,6 +54,8 @@ component("prefs") {
 
   deps = [
     "//base",
+    "//components/prefs/public/interfaces",
+    "//services/shell/public/cpp",
   ]
 }
 
@@ -88,6 +92,7 @@ source_set("unit_tests") {
     "pref_change_registrar_unittest.cc",
     "pref_member_unittest.cc",
     "pref_notifier_impl_unittest.cc",
+    "pref_observer_store_unittest.cc",
     "pref_service_unittest.cc",
     "pref_value_map_unittest.cc",
     "pref_value_store_unittest.cc",
@@ -98,6 +103,7 @@ source_set("unit_tests") {
     ":test_support",
     "//base",
     "//base/test:test_support",
+    "//components/prefs/public/interfaces",
     "//testing/gmock",
     "//testing/gtest",
   ]