Fix missed tracing line; convert to if constexpr
Fix missed tracing line; convert to if constexpr

Change-Id: I67d3e9e43ca3985acf6552a8f2edbbcf5f1abad4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/544236
Reviewed-by: Ben Wagner <53965154ffeecc4a10886eab9259e95965f2979a@google.com>
Commit-Queue: Herb Derby <9e12a3d2bbf73546e47cc9958f6ba8f3215b7eaf@google.com>

google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia