Remove Bitmaps Raw Pixel Support.

bitmap.setPixels(...) now creates a mutable pixelRef instead
of just setting fPixels.
Review URL: https://codereview.appspot.com/6419044

git-svn-id: http://skia.googlecode.com/svn/trunk@4722 2bbb7eff-a529-9590-31e7-b0007b416f81
5 files changed