Fix generation of random two point gradients for program unit test.



git-svn-id: http://skia.googlecode.com/svn/trunk@6751 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.cpp b/src/effects/gradients/SkTwoPointConicalGradient.cpp
index 4538eb2..5c06bce 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.cpp
+++ b/src/effects/gradients/SkTwoPointConicalGradient.cpp
@@ -426,7 +426,7 @@
     SkPoint center2;
     SkScalar radius2;
     do {
-        center1.set(random->nextUScalar1(), random->nextUScalar1());
+        center2.set(random->nextUScalar1(), random->nextUScalar1());
         radius2 = random->nextUScalar1 ();
         // If the circles are identical the factory will give us an empty shader.
     } while (radius1 == radius2 && center1 == center2);