Various improvements to CodecSrc testing in dm
*** Add CodecMode and ScaledCodecMode (in place of
NormalMode), so now we test SkCodec's getPixels() and
SkScaledCodec's getPixels()
*** Don't attempt to test scanline and codec modes using
the dimensions that were recommended for SkScaledCodec.
*** Change tags so that each scale gets its own output
folder.
TODO: Make ScanlineMode and ScanlineSubsetMode support
kOutOfOrder etc. I think this belongs with the gif CL -
I don't want to add test modes that we don't run yet.
BUG=skia:4202
BUG=skia:4238
Review URL: https://codereview.chromium.org/1327433003
3 files changed