Switch to standard integer types in sync/.

sync/test/null_directory_change_delegate.h

Index: sync/test/null_directory_change_delegate.h
diff --git a/sync/test/null_directory_change_delegate.h b/sync/test/null_directory_change_delegate.h
index 4c52f3cdbf55d01a1636a531721ed66ddda9717e..4a2799e9a6ca2f1280648977c943fb4024b4551e 100644
--- a/sync/test/null_directory_change_delegate.h
+++ b/sync/test/null_directory_change_delegate.h
@@ -5,6 +5,8 @@
 #ifndef SYNC_TEST_NULL_DIRECTORY_CHANGE_DELEGATE_H_
 #define SYNC_TEST_NULL_DIRECTORY_CHANGE_DELEGATE_H_
 
+#include <stdint.h>
+
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ -21,11 +23,11 @@ class NullDirectoryChangeDelegate : public DirectoryChangeDelegate {
   void HandleCalculateChangesChangeEventFromSyncApi(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans,
-      std::vector<int64>* entries_changed) override;
+      std::vector<int64_t>* entries_changed) override;
   void HandleCalculateChangesChangeEventFromSyncer(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans,
-      std::vector<int64>* entries_changed) override;
+      std::vector<int64_t>* entries_changed) override;
   ModelTypeSet HandleTransactionEndingChangeEvent(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans) override;