add debugging test for building SkDescriptor
update some samples



git-svn-id: http://skia.googlecode.com/svn/trunk@1237 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleTextBox.cpp b/samplecode/SampleTextBox.cpp
index a2db011..37a6be0 100644
--- a/samplecode/SampleTextBox.cpp
+++ b/samplecode/SampleTextBox.cpp
@@ -32,7 +32,7 @@
 	"a decent respect to the opinions of mankind requires that they should "
 	"declare the causes which impel them to the separation.";
 
-class TextBoxView : public SkView {
+class TextBoxView : public SampleView {
 public:
 	TextBoxView() {
 #ifdef SK_BUILD_FOR_WIN
@@ -60,13 +60,7 @@
         return this->INHERITED::onQuery(evt);
     }
 
-    void drawBG(SkCanvas* canvas) {
-        canvas->drawColor(SK_ColorWHITE);
-    }
-
-    virtual void onDraw(SkCanvas* canvas) {
-        this->drawBG(canvas);
-
+    virtual void onDrawContent(SkCanvas* canvas) {
 		SkScalar margin = 20;
         SkTextBox tbox;
 		tbox.setMode(SkTextBox::kLineBreak_Mode);