Revert of [Sync] Move //components/sync to the syncer namespace. (patchset #5 id:40001 of https://co

components/sync/core/model_type_store_backend_unittest.cc

 // 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.
 
 #include "components/sync/core/model_type_store_backend.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/leveldatabase/src/include/leveldb/env.h"
 #include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
 
-namespace syncer {
+namespace syncer_v2 {
 
 class ModelTypeStoreBackendTest : public testing::Test {
  public:
   scoped_refptr<ModelTypeStoreBackend> GetOrCreateBackend() {
     std::string path = "/test_db";
     return GetOrCreateBackendWithPath(path);
   }
 
   scoped_refptr<ModelTypeStoreBackend> GetOrCreateBackendWithPath(
       std::string custom_path) {
@@ skipping 158 matching lines @@
   ASSERT_TRUE(backend_second.get());
   ASSERT_TRUE(backend_second->HasOneRef());
   ASSERT_FALSE(BackendExistsForPath(path));
 
   // delete another backend.
   backend_second = nullptr;
   ASSERT_FALSE(backend_second.get());
   ASSERT_FALSE(BackendExistsForPath("/test_db2"));
 }
 
-}  // namespace syncer
+}  // namespace syncer_v2