Add a SK_LEGACY_SKCODEC_NONE_ENUM #define'able to ease transition.
Also rename another internal "kNone" enum in SkWebpCodec.cpp.
The "kNone" name is overloaded:
- include/core/SkImageGenerator.h defines its own kNone.
- include/encode/SkPngEncoder.h defines its own kNone.
- include/private/GrTypesPriv.h defines multiple kNone's.
Bug: skia:
Change-Id: I18c03a74f2f1b0237016e0eef53dcd4478b82609
Reviewed-on: https://skia-review.googlesource.com/146020
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
66bc524d34