fuzzer fixes

gm/shadows.cpp

Index: gm/shadows.cpp
diff --git a/gm/shadows.cpp b/gm/shadows.cpp
index 3ecbdd833fce45062d43082dcd7214bbcc7429d6..66ad32e089e8ca06b370dbc66a844c0fd4ecdcdf 100644
--- a/gm/shadows.cpp
+++ b/gm/shadows.cpp
@@ -28,14 +28,14 @@ public:
     SkPath fCirclePath;
     SkRect fRect;
 
-    ShadowsGM() {
+protected:
+    void onOnceBeforeDraw() SK_OVERRIDE {
         this->setBGColor(0xFFDDDDDD);
         fCirclePath.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(10) );
         fRect.set(SkIntToScalar(10), SkIntToScalar(10),
                   SkIntToScalar(30), SkIntToScalar(30));
     }
 
-protected:
     virtual SkString onShortName() {
         return SkString("shadows");
     }