Revert of eliminate config param -- it was always self's config (https://codereview.chromium.org/246513002/)

Reason for revert:
Causes some layout_test failures around texture backed bitmaps. Test names and crash logs accessible via: https://storage.googleapis.com/chromium-layout-test-archives/linux_layout/13845/layout-test-results/results.html



Original issue's description:
> eliminate config param -- it was always self's config
>
> BUG=skia:
> R=bsalomon@google.com
>
> Committed: https://code.google.com/p/skia/source/detail?r=14303

R=reed@google.com
TBR=reed@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/249373003

git-svn-id: http://skia.googlecode.com/svn/trunk@14324 2bbb7eff-a529-9590-31e7-b0007b416f81
4 files changed