Merge "Frameworks/base: Don't allocate another identity matrix"

        // is no need for deep copying.

        private final Path mPath;

        private final Path mRenderPath;

        private static final Matrix IDENTITY_MATRIX = new Matrix();

        private final Matrix mFinalPathMatrix = new Matrix();

        private Paint mStrokePaint;

        public void draw(Canvas canvas, int w, int h, ColorFilter filter) {

            // Travese the tree in pre-order to draw.

            drawGroupTree(mRootGroup, IDENTITY_MATRIX, canvas, w, h, filter);

            drawGroupTree(mRootGroup, Matrix.IDENTITY_MATRIX, canvas, w, h, filter);

        }

        private void drawPath(VGroup vGroup, VPath vPath, Canvas canvas, int w, int h,