[Sync] Move //components/sync to the syncer namespace, take 2.

components/sync/syncable/directory_unittest.h

Index: components/sync/syncable/directory_unittest.h
diff --git a/components/sync/syncable/directory_unittest.h b/components/sync/syncable/directory_unittest.h
index ca8850203c055f421dae6fa0d1dc8ee5972afc6f..d69d2ca127ccaf855464cad2ad7adb9815f3afde 100644
--- a/components/sync/syncable/directory_unittest.h
+++ b/components/sync/syncable/directory_unittest.h
@@ -7,6 +7,7 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
 #include "base/message_loop/message_loop.h"
@@ -22,7 +23,6 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
-
 namespace syncable {
 
 class BaseTransaction;
@@ -109,7 +109,6 @@ class SyncableDirectoryTest : public testing::Test {
 };
 
 }  // namespace syncable
-
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_SYNCABLE_DIRECTORY_UNITTEST_H_