Pref service: expose all read-only PrefStores through Mojo

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 03d8ff3f37acab890adfa982e2b42bc4b0e9cb25..1c3d87118612947127bf790a393737e955452c94 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -491,7 +491,8 @@ ProfileImpl::ProfileImpl(
     prefs_ = chrome_prefs::CreateProfilePrefs(
         path_, sequenced_task_runner, pref_validation_delegate_.get(),
         profile_policy_connector_->policy_service(), supervised_user_settings,
-        CreateExtensionPrefStore(this, false), pref_registry_, async_prefs);
+        CreateExtensionPrefStore(this, false), pref_registry_, async_prefs,
+        content::BrowserContext::GetConnectorFor(this));
     // Register on BrowserContext.
     user_prefs::UserPrefs::Set(this, prefs_.get());
   }