Replace reference parameter with pointer so that we can pass NULL
in SkDrawPaint::add(); check the pointer when it's used to avoid
dereferencing NULL.

Add title to Animator sample slide.



git-svn-id: http://skia.googlecode.com/svn/trunk@1825 2bbb7eff-a529-9590-31e7-b0007b416f81
4 files changed