Merge "Fix ref count of fillGradient and strokeGradient" into nyc-dev
am: da62de4

* commit 'da62de4f65ccffc4734299f82f1c9ce4836e1c58':
  Fix ref count of fillGradient and strokeGradient

Change-Id: Id4aa38d26fd568f4a312fd5ba507306b84ce8ac7