tree 80302bfde52d791a27d445c9a58a71365c3f20ea
parent f856fd1ccdd839646159767f6aa9a2f2a1b97f04
author Leon Scroggins III <scroggo@google.com> 1481915823 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1481917912 +0000

Only attempt index8 if underlying GIF is index8

Recent changes (crrev.com/2045293002) made it so that a GIF may not
support index 8. In that case, make SkAndroidCodec not suggest index 8.

Add a test and a new test file. randPixelsOffset.gif is the same as
randPixels.gif, except its frame is offset. Since it does not have a
transparent index, we have to decode to kN32.

Change-Id: I1c09ab9094083de3dfc436632b3c26dbde1dccbd
Reviewed-on: https://skia-review.googlesource.com/6196
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>