fuzzer fixes

samplecode/SampleCode.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SampleCode_DEFINED
 #define SampleCode_DEFINED
 
@@ skipping 89 matching lines @@
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class SampleView : public SkView {
 public:
     SampleView()
         : fPipeState(SkOSMenu::kOffState)
         , fBGColor(SK_ColorWHITE)
         , fRepeatCount(1)
+        , fHaveCalledOnceBeforeDraw(false)
     {}
 
     void setBGColor(SkColor color) { fBGColor = color; }
     bool animate(const SkAnimTimer& timer) { return this->onAnimate(timer); }
 
     static bool IsSampleView(SkView*);
     static bool SetRepeatDraw(SkView*, int count);
     static bool SetUsePipe(SkView*, SkOSMenu::TriState);
 
     /**
      *  Call this to request menu items from a SampleView.
      *  Subclassing notes: A subclass of SampleView can overwrite this method
      *  to add new items of various types to the menu and change its title.
      *  The events attached to any new menu items must be handled in its onEvent
      *  method. See SkOSMenu.h for helper functions.
      */
     virtual void requestMenu(SkOSMenu* menu) {}
 
     virtual void onTileSizeChanged(const SkSize& tileSize) {}
 
 protected:
     virtual void onDrawBackground(SkCanvas*);
     virtual void onDrawContent(SkCanvas*) = 0;
     virtual bool onAnimate(const SkAnimTimer&) { return false; }
+    virtual void onOnceBeforeDraw() {}
 
     // overrides
     virtual bool onEvent(const SkEvent& evt);
     virtual bool onQuery(SkEvent* evt);
     virtual void draw(SkCanvas*);
     virtual void onDraw(SkCanvas*);
 
     SkOSMenu::TriState fPipeState;
     SkColor fBGColor;
 
 private:
     int fRepeatCount;
-
+    bool fHaveCalledOnceBeforeDraw;
     typedef SkView INHERITED;
 };
 
 #endif