Fix bug in SkMatrix::invert where typemask is not set on inverse when a matrix is inverted into itself.
Fix bug in SkMatrix::invert where typemask is not set on inverse when a matrix is inverted into itself.

Review URL: http://codereview.appspot.com/4819050/



git-svn-id: e8541e15acce502a64c929015570ad1648e548cd@2002 2bbb7eff-a529-9590-31e7-b0007b416f81

MatChung/color-emoji.skia,MatChung/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia