switch to inheriting from SampleView



git-svn-id: http://skia.googlecode.com/svn/trunk@1249 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleLayerMask.cpp b/samplecode/SampleLayerMask.cpp
index 51a021b..9bd00ae 100644
--- a/samplecode/SampleLayerMask.cpp
+++ b/samplecode/SampleLayerMask.cpp
@@ -5,9 +5,11 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-class LayerMaskView : public SkView {
+class LayerMaskView : public SampleView {
 public:
-	LayerMaskView() {}
+	LayerMaskView() {
+        this->setBGColor(0xFFDDDDDD);
+    }
     
 protected:
     // overrides from SkEventSink
@@ -46,13 +48,7 @@
         }
     }
 
-    void drawBG(SkCanvas* canvas) {
-        canvas->drawColor(0xFFDDDDDD);
-    }
-    
-    virtual void onDraw(SkCanvas* canvas) {
-        this->drawBG(canvas);
-        
+    virtual void onDrawContent(SkCanvas* canvas) {
         SkRect  r;
         r.set(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(120), SkIntToScalar(120));
         canvas->saveLayer(&r, NULL, SkCanvas::kARGB_ClipLayer_SaveFlag);
@@ -62,7 +58,7 @@
     }
     
 private:
-    typedef SkView INHERITED;
+    typedef SampleView INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////