Add SkMatrix::getPerspectiveTypeMaskOnly() and SkMatrix::isTriviallyIdentity().
Reduces profile time in setConcat() and computeTypeMask() for demos that
do a lot of matrix concatenation.



git-svn-id: http://skia.googlecode.com/svn/trunk@2191 2bbb7eff-a529-9590-31e7-b0007b416f81
4 files changed