Alternative fix for stale MIP maps on texture export/import.

This change assumes imported textures in SkImages have dirty mip levels
and disables regenerating the MIP levels on export (added in

This is being done temporarily because it is a simpler change to cherry
pick to earlier branches than

No-Tree-Checks: true
No-Try: true
No-Presubmit: true
Bug: chromium:850617
Change-Id: I7c90da782a0ed9014acd6a54ffdee1a0b34fa00c
Commit-Queue: Brian Salomon <>
Auto-Submit: Brian Salomon <>
Reviewed-By: Greg Daniel <>
Reviewed-by: Brian Salomon <>
2 files changed