Add a sanity check to MaskSuperBlitter::blitH(), to avoid a subsequent
crash in *Blitter::blitMask(), and add some more asserts.

http://codereview.appspot.com/110050
http://crbug.com/17569



git-svn-id: http://skia.googlecode.com/svn/trunk@330 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed