fuzzer fixes

samplecode/SampleStrokePath.cpp

Index: samplecode/SampleStrokePath.cpp
diff --git a/samplecode/SampleStrokePath.cpp b/samplecode/SampleStrokePath.cpp
index 4f6e3cc743579c26a30b4ba0d1a23902d474faab..5369a93a808ea7066a2e719be70cbad1a39ce9b3 100644
--- a/samplecode/SampleStrokePath.cpp
+++ b/samplecode/SampleStrokePath.cpp
@@ -98,8 +98,8 @@ static const struct {
 class StrokePathView : public SampleView {
     SkScalar    fWidth;
     SkPath      fPath;
-public:
-    StrokePathView() {
+protected:
+    virtual void onceBeforeDraw() {
 //        test_blur();
         fWidth = SkIntToScalar(120);
 
@@ -122,7 +122,6 @@ public:
         this->setBGColor(0xFFDDDDDD);
     }
 
-protected:
     // overrides from SkEventSink
     bool onQuery(SkEvent* evt) SK_OVERRIDE {
         if (SampleCode::TitleQ(*evt)) {