[Sync] Move sessions/ to engine/cycle/ and rename things to match.

components/sync/engine_impl/cycle/status_controller_unittest.cc

 // Copyright (c) 2012 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/sessions_impl/sync_session.h"
+#include "components/sync/engine_impl/cycle/sync_cycle.h"
 #include "components/sync/test/engine/test_id_factory.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
-namespace sessions {
 
 class StatusControllerTest : public testing::Test {};
 
 // This test is useful, as simple as it sounds, due to the copy-paste prone
 // nature of status_controller.cc (we have had bugs in the past where a set_foo
 // method was actually setting |bar_| instead!).
 TEST_F(StatusControllerTest, ReadYourWrites) {
   StatusController status;
 
   status.set_last_download_updates_result(SYNCER_OK);
@@ skipping 12 matching lines @@
 TEST_F(StatusControllerTest, TotalNumConflictingItems) {
   StatusController status;
   EXPECT_EQ(0, status.TotalNumConflictingItems());
 
   status.increment_num_server_conflicts();
   status.increment_num_hierarchy_conflicts_by(3);
   status.increment_num_encryption_conflicts_by(2);
   EXPECT_EQ(6, status.TotalNumConflictingItems());
 }
 
-}  // namespace sessions
 }  // namespace syncer