Switch to standard integer types in sync/.

sync/syncable/directory_change_delegate.h

Index: sync/syncable/directory_change_delegate.h
diff --git a/sync/syncable/directory_change_delegate.h b/sync/syncable/directory_change_delegate.h
index b406f5fee49366a5ecbc5641aec181c304a3ecc8..9fe71cfad0cf26ddc8c2ceebc93c9177c555cc0c 100644
--- a/sync/syncable/directory_change_delegate.h
+++ b/sync/syncable/directory_change_delegate.h
@@ -5,6 +5,8 @@
 #ifndef SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_
 #define SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_
 
+#include <stdint.h>
+
 #include <vector>
 
 #include "sync/base/sync_export.h"
@@ -30,12 +32,12 @@ class SYNC_EXPORT DirectoryChangeDelegate {
   virtual void HandleCalculateChangesChangeEventFromSyncApi(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans,
-      std::vector<int64>* entries_changed) = 0;
+      std::vector<int64_t>* entries_changed) = 0;
   // Returns the handles of changed entries in |entry_changed|.
   virtual void HandleCalculateChangesChangeEventFromSyncer(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans,
-      std::vector<int64>* entries_changed) = 0;
+      std::vector<int64_t>* entries_changed) = 0;
   // Must return the set of all ModelTypes that were modified in the
   // transaction.
   virtual ModelTypeSet HandleTransactionEndingChangeEvent(