Flip the switch to turn on GrCustomStage implementation of gradients;
remove old implementation, including enums & state on various structs.

http://codereview.appspot.com/6245078/



git-svn-id: http://skia.googlecode.com/svn/trunk@4129 2bbb7eff-a529-9590-31e7-b0007b416f81
9 files changed