[C++] Fix build in aftermath of ARROW-33 #16178
Description
After fixing PARQUET-866, we need to fix the master build
Reporter: Wes McKinney / @wesm
Assignee: Wes McKinney / @wesm
Related issues:
- Arrow release 0.2 (blocks)
Note: This issue was originally created as ARROW-540. Please see the migration documentation for further details.