Update skia/dm to use TArray

Bug: skia:14148
Change-Id: I3bcf0015c77ec548c8f44d7b535a5103e4a88d1a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/650120
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Herb Derby <herb@google.com>
4 files changed