Revert "remove uncalled virtuals"
Revert "remove uncalled virtuals"

This reverts commit 8edacdb6a519417ab5f705402e876c147ddebab6.

Reason for revert: need to update overrides in google3

Original change's description:
> remove uncalled virtuals
> 
> Change-Id: Icd2e7ec8f321a1828b317d74c0ce4f3ada971e0a
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/276765
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Mike Reed <f5cabf8735907151a446812c9875d6c0c712d847@google.com>

TBR=brianosman@google.com,f5cabf8735907151a446812c9875d6c0c712d847@google.com

Change-Id: I14b1cb88bea641c475bde84126fb3d6a510bfb0b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/277615
Reviewed-by: Mike Reed <f5cabf8735907151a446812c9875d6c0c712d847@google.com>
Commit-Queue: Mike Reed <f5cabf8735907151a446812c9875d6c0c712d847@google.com>

aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia