Move PrefStoreManagerImpl into //services/preferences.

services/preferences/pref_store_manager_impl.cc

Index: services/preferences/pref_store_manager_impl.cc
diff --git a/services/preferences/public/cpp/pref_store_manager_impl.cc b/services/preferences/pref_store_manager_impl.cc
similarity index 98%
rename from services/preferences/public/cpp/pref_store_manager_impl.cc
rename to services/preferences/pref_store_manager_impl.cc
index 56846c39ca2b6ed880235fb5da690edd39839ecc..1d430fa394c471dfe5efc12ede65b391fd7a1c1b 100644
--- a/services/preferences/public/cpp/pref_store_manager_impl.cc
+++ b/services/preferences/pref_store_manager_impl.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "services/preferences/public/cpp/pref_store_manager_impl.h"
+#include "services/preferences/pref_store_manager_impl.h"
 
 #include <utility>
 
@@ -82,7 +82,7 @@ void ConnectionBarrier::OnConnect(
 }  // namespace
 
 PrefStoreManagerImpl::PrefStoreManagerImpl(
-    PrefStoreTypes expected_pref_stores,
+    std::set<PrefValueStore::PrefStoreType> expected_pref_stores,
     scoped_refptr<base::SequencedWorkerPool> worker_pool)
     : expected_pref_stores_(std::move(expected_pref_stores)),
       init_binding_(this),