rename animator's internal SkData to SkDataInput git-svn-id: http://skia.googlecode.com/svn/trunk@1697 2bbb7eff-a529-9590-31e7-b0007b416f81
git-svn-id: http://skia.googlecode.com/svn/trunk@1589 2bbb7eff-a529-9590-31e7-b0007b416f81