call notifyPixelsChanged() when the pages are flipped in pageflippixelref
update samples



git-svn-id: http://skia.googlecode.com/svn/trunk@192 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleText.cpp b/samplecode/SampleText.cpp
index 83ff68d..7b8bcf0 100644
--- a/samplecode/SampleText.cpp
+++ b/samplecode/SampleText.cpp
@@ -90,13 +90,13 @@
 
 static void test_typefaceCache()
 {
+#ifdef ANDROID
     SkTypeface* t0 = SkTypeface::CreateFromName("sans-serif",
                                                 SkTypeface::kNormal);
     SkTypeface* t1 = SkTypeface::CreateFromName(NULL, SkTypeface::kNormal);
     SkTypeface* t2 = SkTypeface::CreateFromName("arial", SkTypeface::kNormal);
     SkTypeface* t3 = SkTypeface::CreateFromName("helvetica", SkTypeface::kItalic);
     
-#ifdef ANDROID
     SkASSERT(t0 == t1);
     SkASSERT(t0 == t2);
     SkASSERT(t0 == t3);