Switch to standard integer types in sync/.

sync/test/fake_server/entity_builder_factory.h

Index: sync/test/fake_server/entity_builder_factory.h
diff --git a/sync/test/fake_server/entity_builder_factory.h b/sync/test/fake_server/entity_builder_factory.h
index 07d7a57f77b9211dca56cf924d62f575cfbd9705..ff86cda32cf0971d0f772fd64239be394f7c6820 100644
--- a/sync/test/fake_server/entity_builder_factory.h
+++ b/sync/test/fake_server/entity_builder_factory.h
@@ -5,6 +5,8 @@
 #ifndef SYNC_TEST_FAKE_SERVER_ENTITY_BUILDER_FACTORY_H_
 #define SYNC_TEST_FAKE_SERVER_ENTITY_BUILDER_FACTORY_H_
 
+#include <stdint.h>
+
 #include <string>
 
 #include "sync/test/fake_server/bookmark_entity_builder.h"
@@ -34,7 +36,7 @@ class EntityBuilderFactory {
   std::string cache_guid_;
 
   // The latest client item id assigned to an entity.
-  int64 latest_client_item_id_;
+  int64_t latest_client_item_id_;
 };
 
 }  // namespace fake_server