Switch to standard integer types in sync/.

sync/internal_api/sync_rollback_manager.h

Index: sync/internal_api/sync_rollback_manager.h
diff --git a/sync/internal_api/sync_rollback_manager.h b/sync/internal_api/sync_rollback_manager.h
index 86c50858f35b1ceb0815319833d2a98abef2573a..d41086a0bfa4ae3063e14e09dc76cffa1f1b7856 100644
--- a/sync/internal_api/sync_rollback_manager.h
+++ b/sync/internal_api/sync_rollback_manager.h
@@ -5,10 +5,13 @@
 #ifndef SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_H_
 #define SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_H_
 
+#include <stdint.h>
+
 #include <map>
 #include <string>
 #include <vector>
 
+#include "base/macros.h"
 #include "sync/internal_api/sync_rollback_manager_base.h"
 
 class GURL;
@@ -29,7 +32,8 @@ class SYNC_EXPORT SyncRollbackManager : public SyncRollbackManagerBase {
 
  private:
   // Deletes specified entries in local model.
-  SyncerError DeleteOnWorkerThread(ModelType type, std::vector<int64> handles);
+  SyncerError DeleteOnWorkerThread(ModelType type,
+                                   std::vector<int64_t> handles);
 
   void NotifyRollbackDone();