Fix Typescript type hints for CanvasKit debug traces.

The tests for these methods are only handled in Javascript, so the type
mismatches weren't detected until I tried using the calls in Typescript
later.

Change-Id: Ifb233f871be1146d3f059b166b7de40bb401d4c9
Bug: skia:12818
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/495417
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
1 file changed