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

components/sync/test/engine/test_directory_setter_upper.h

Index: components/sync/test/engine/test_directory_setter_upper.h
diff --git a/components/sync/test/engine/test_directory_setter_upper.h b/components/sync/test/engine/test_directory_setter_upper.h
index 437154e82f8e9dddcb90a853f67b116b327392de..1a38476598ccdf2024bda18a6e855b97db66b162 100644
--- a/components/sync/test/engine/test_directory_setter_upper.h
+++ b/components/sync/test/engine/test_directory_setter_upper.h
@@ -57,8 +57,7 @@ class TestDirectorySetterUpper {
 
   // Create a Directory instance using |directory_store| as backend storage.
   // Takes ownership of |directory_store|.
-  virtual void SetUpWith(
-      syncer::syncable::DirectoryBackingStore* directory_store);
+  virtual void SetUpWith(syncable::DirectoryBackingStore* directory_store);
 
   // Undo everything done by SetUp(): close the directory and delete the
   // backing files. Before closing the directory, this will run the directory