Update comment for SkFilterQuality
SkFilterQuality is recorded in the chrome UMA metrics, the enum should
not be reordered or changed; otherwise, the result may produce false
alarm. Adding the comment to reflect it t avoid future misunderstanding.
Bug:1176091
Change-Id: I6cdf0d8c4f59a5548e456a2c641b2b6158abde48
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/374417
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/include/core/SkFilterQuality.h b/include/core/SkFilterQuality.h
index 91212b9..5af85ec 100644
--- a/include/core/SkFilterQuality.h
+++ b/include/core/SkFilterQuality.h
@@ -12,7 +12,9 @@
/**
* Controls how much filtering to be done when scaling/transforming complex colors
- * e.g. images
+ * e.g. images.
+ These values are persisted to logs. Entries should not be renumbered and
+ numeric values should never be reused.
*/
enum SkFilterQuality {
kNone_SkFilterQuality = 0, //!< nearest-neighbor; fastest but lowest quality
