Add basic SVD support to SkMatrix. Allows you to pull out the x- and y-scale factors, sandwiched by two rotations.

R=reed@google.com

Author: jvanverth@google.com

Review URL: https://chromiumcodereview.appspot.com/19569007

git-svn-id: http://skia.googlecode.com/svn/trunk@10322 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed