limit bookmaker status output

streamline 'working as intended' output
notify when output changed
fix bug which appended output incorrectly to SkBitmap.h
fix bug that hid bad SkSurface.h from detection

Docs-Preview: https://skia.org/?cl=90162
Bug: skia:6898
Change-Id: I067cfe5bbad706345fb5cd540cdc3835ce22d822
Reviewed-on: https://skia-review.googlesource.com/90162
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Cary Clark <caryclark@skia.org>
22 files changed