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

components/sync/syncable/dir_open_result.h

Index: components/sync/syncable/dir_open_result.h
diff --git a/components/sync/syncable/dir_open_result.h b/components/sync/syncable/dir_open_result.h
index d1c77e9eb83bb63cac970963f2b70e01ac847527..e4088895b07b4c4849763e11097897d4d5c8ba46 100644
--- a/components/sync/syncable/dir_open_result.h
+++ b/components/sync/syncable/dir_open_result.h
@@ -7,6 +7,7 @@
 
 namespace syncer {
 namespace syncable {
+
 enum DirOpenResult {
   NOT_INITIALIZED,
   OPENED,                     // success.
@@ -19,6 +20,7 @@ enum DirOpenResult {
   FAILED_IN_UNITTEST,         // For tests.
   FAILED_INITIAL_WRITE,       // Early write to DB failed.
 };
+
 }  // namespace syncable
 }  // namespace syncer