Tidy up some ImageBuffer-related classes
Created attachment 450970 [details] Patch
Created attachment 450973 [details] Patch
Created attachment 450991 [details] Patch
Comment on attachment 450991 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=450991&action=review > Source/WebCore/platform/graphics/cg/ImageBufferCGBitmapBackend.h:49 > + GraphicsContext& context() const final; Could consider also making these private if they are always called polymorphically, on the ImageBufferCGBackend base class.
Created attachment 451135 [details] Patch
https://trac.webkit.org/changeset/289240/webkit
<rdar://problem/88594557>