Make DecodeMemoryToTarget handle more configs.

In SkImageDecoder::DecodeMemoryToTarget, if SkBitmapToImageInfo fails due to an unsupported config, copy to 8888.

Needed for https://codereview.chromium.org/15145004/ and
https://codereview.chromium.org/12851012/ for all bitmaps to be
decoded properly in render_pictures and bench_pictures.

R=reed@google.com

Review URL: https://codereview.chromium.org/14772035

git-svn-id: http://skia.googlecode.com/svn/trunk@9196 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed