make calls to SubRun and AtlasSubRun const
In theory, all sub runs should be fully const because they are shared by
multiple threads. But, they are used in a single-threaded situation
when flushed to the GPU. AtlasSubRuns are mutate during the GPU flush
to convert PackedGlyphIDs to GrGlyph pointers. Because of that I
decided to make everything const, but label the GrGlyphVector (the
structure that holds the PackedGlyphIDs/GrGlyphs) to be mutable.
Change-Id: I328175a8933b64fda7fab2b3b3d8699683451e60
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/304216
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
4 files changed