implement readPixels and writePixels natively, w/o using the (deprecated)
SkCanvas::Config8888 enum.

Revert "Revert "hide Config8888 entirely". Broke a bunch of builds."

This reverts commit 763277ba157fef0f651004bb98a189e9f1ac730b.

Needs chrome to remove the READPIXELS guard from skia's .gyp

Review URL: https://codereview.chromium.org/199733016

git-svn-id: http://skia.googlecode.com/svn/trunk@13931 2bbb7eff-a529-9590-31e7-b0007b416f81
13 files changed