[Sync] Move the last things out of core/.

components/sync/engine/non_blocking_sync_common.h

Index: components/sync/engine/non_blocking_sync_common.h
diff --git a/components/sync/core/non_blocking_sync_common.h b/components/sync/engine/non_blocking_sync_common.h
similarity index 89%
rename from components/sync/core/non_blocking_sync_common.h
rename to components/sync/engine/non_blocking_sync_common.h
index 6066a02c97e032674437db018f2de1db8d37e67b..1914b74364957f681a2b7c15c36de8747120c966 100644
--- a/components/sync/core/non_blocking_sync_common.h
+++ b/components/sync/engine/non_blocking_sync_common.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_SYNC_CORE_NON_BLOCKING_SYNC_COMMON_H_
-#define COMPONENTS_SYNC_CORE_NON_BLOCKING_SYNC_COMMON_H_
+#ifndef COMPONENTS_SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_
+#define COMPONENTS_SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_
 
 #include <stdint.h>
 
@@ -62,4 +62,4 @@ typedef std::vector<UpdateResponseData> UpdateResponseDataList;
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_CORE_NON_BLOCKING_SYNC_COMMON_H_
+#endif  // COMPONENTS_SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_