Convert //sync from scoped_ptr to std::unique_ptr

sync/internal_api/public/user_share.h

Index: sync/internal_api/public/user_share.h
diff --git a/sync/internal_api/public/user_share.h b/sync/internal_api/public/user_share.h
index eee61829445a4d4ccaa713eb4d877ff42763dd31..428797473aa34ed57ea78e6365a4338546f5cb2b 100644
--- a/sync/internal_api/public/user_share.h
+++ b/sync/internal_api/public/user_share.h
@@ -5,9 +5,9 @@
 #ifndef SYNC_INTERNAL_API_PUBLIC_USER_SHARE_H_
 #define SYNC_INTERNAL_API_PUBLIC_USER_SHARE_H_
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/sync_manager.h"
 
@@ -26,7 +26,7 @@ struct SYNC_EXPORT UserShare {
   ~UserShare();
 
   // The Directory itself, which is the parent of Transactions.
-  scoped_ptr<syncable::Directory> directory;
+  std::unique_ptr<syncable::Directory> directory;
 
   // The credentials used by sync when talking to the sync server.
   //