Fix documentation bug about saveLayer
Fix documentation bug about saveLayer

Change-Id: I521ca6bab376f8545a24b0b4d976ef15851d7279
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/574702
Reviewed-by: Greg Daniel <39df0a804564ccb6cf75f18db79653821f37c1c5@google.com>
Commit-Queue: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>

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