Change old PRG to be SkLCGRandom; change new one to SkRandom

gm/circles.cpp

Index: gm/circles.cpp
diff --git a/gm/circles.cpp b/gm/circles.cpp
index f57463954cac7835dc1a8573a8c95be479307e13..3cd07f29a1d1b69b71eeed4297ab0a208d35b5a0 100644
--- a/gm/circles.cpp
+++ b/gm/circles.cpp
@@ -152,9 +152,8 @@ protected:
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
-        SkRandom rand;
+        SkLCGRandom rand;
         canvas->translate(20 * SK_Scalar1, 20 * SK_Scalar1);
-
         int i;
         for (i = 0; i < fPaints.count(); ++i) {
             canvas->save();
@@ -206,3 +205,4 @@ static GM* MyFactory(void*) { return new CircleGM; }
 static GMRegistry reg(MyFactory);
 
 }
+